Relevant bibliographies by topics / Horizontal Axis Wind Turbine

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Academic literature on the topic 'Horizontal Axis Wind Turbine'

Author: Grafiati
Published: 4 June 2021
Last updated: 28 January 2023

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Journal articles on the topic "Horizontal Axis Wind Turbine"

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Khudri Johari, Muhd, Muhammad Azim A Jalil, and Mohammad Faizal Mohd Shariff. "Comparison of horizontal axis wind turbine (HAWT) and vertical axis wind turbine (VAWT)." International Journal of Engineering & Technology 7, no. 4.13 (October 9, 2018): 74. http://dx.doi.org/10.14419/ijet.v7i4.13.21333.

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As the demand for green technology is rising rapidly worldwide, it is important that Malaysian researchers take advantage of Malaysia’s windy climates and areas to initiate more power generation projects using wind. The main objectives of this study are to build a functional wind turbine and to compare the performance of two types of design for wind turbine under different speeds and behaviours of the wind. A three-blade horizontal axis wind turbine (HAWT) and a Darrieus-type vertical axis wind turbine (VAWT) have been designed with CATIA software and constructed using a 3D-printing method. Both wind turbines have undergone series of tests before the voltage and current output from the wind turbines are collected. The result of the test is used to compare the performance of both wind turbines that will imply which design has the best efficiency and performance for Malaysia’s tropical climate. While HAWT can generate higher voltage (up to 8.99 V at one point), it decreases back to 0 V when the wind angle changes. VAWT, however, can generate lower voltage (1.4 V) but changes in the wind angle does not affect its voltage output at all. The analysis has proven that VAWT is significantly more efficient to be built and utilized for Malaysia’s tropical and windy climates. This is also an initiative project to gauge the possibility of building wind turbines, which could be built on the extensive and windy areas surrounding Malaysian airports.
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Prasad D, Bhavani K, Supraja P, Vamsi B, and Sai Charan Reddy V. "Horizontal axis wind turbine." South Asian Journal of Engineering and Technology 12, no. 2 (March 31, 2022): 5–7. http://dx.doi.org/10.26524/sajet.2022.12.22.

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This paper describes a systematic approach to building an intelligent solar Tracking system (ISTS), for improving the performance of solar panels. The ISTS is a hybrid hardware / software prototype, which automatically provides best alignment of solar panel with the sun, to get maximum output (electricity). This method is increasing power collection efficiency by developing a device that tracts the sun to keep the panel at a right angle to its rays.The Embedded solar tracking instrumentation system by using microcontroller. The system consists of Light Dependent Resistor (LDR) sensor, DC motor .Arduino UNO microcontroller is the main component for controlling the system. The solar system will track the location of the sun to ensure the solar panel is always perpendicular with the sun therefore optimizing power output. The operation of the system on sunny and bad weather condition has been presented in this paper. The solar tracking prototype has been stated for future works.
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Reddy, N. Yogi Manash. "Experimental Investigation of Wind Augmenter For Miniature Horizontal Axis Wind Turbine." International Journal Of Mechanical Engineering And Information Technology 05, no. 04 (April 30, 2017): 1584–87. http://dx.doi.org/10.18535/ijmeit/v5i4.05.

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Mao, Xu Ning, Ji Shun Li, and Yi Liu. "Dynamics Simulation for Horizontal-Axis Wind Turbines." Advanced Materials Research 382 (November 2011): 129–32. http://dx.doi.org/10.4028/www.scientific.net/amr.382.129.

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In this study, the dynamic characteristics of three-blade horizontal¬-axis wind turbines were simulated, based on the aerodynamic software AeroDyn, wind turbine design software FAST and mechanical dynamics simulation software ADAMS. AeroDyn and FAST are Interface codes for ADAMS. As the pre-processor of ADAMS, FAST code helps to build wind turbine model as well as constrains ,while AeroDyn code applies wind field data to the model. At last the model was imported into ADAMS to be simulated. In this way, the dynamic operating characteristics of three-blade horizontal¬-axis wind turbines can be obtained. And the load-time curves of the blade roots can also be gotten. Results show that the method adopted is feasible and reliable.
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Zhang, Ling, Hui Xia Sheng, and Da Fei Guo. "Effect of Wind Shear to Horizontal Axis Wind Turbine Aerodynamic." Applied Mechanics and Materials 521 (February 2014): 99–103. http://dx.doi.org/10.4028/www.scientific.net/amm.521.99.

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A three-dimensional unsteady numerical study of the streaming flow field of the1.2 MW horizontal axis wind turbines which operation in the 11.26 m/s under the uniform wind and the shear wind have been carried out in this paper. according to the simulation results to understand the effect of uniform flow and the dynamic wind shear flow to the output power of wind turbine and the aerodynamics. results showed that: Under the uniform wind,Wind turbine power calculation values are in good agreement with the design value ,Wind turbines under the influence of wind shear can lead to change in load and performance on the surface of the blade.
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Indriani, Anizar, Gordon Manurung, Novalio Daratha, and Hendra Hendra. "Perancangan Turbin Sumbu Horizontal dan Sumbu Vertikal untuk Pembangkit Listrik Tenaga Angin (Studi Kasus di Kota Bengkulu)." JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER 9, no. 2 (November 30, 2019): 1–6. http://dx.doi.org/10.33369/jamplifier.v9i2.15376.

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ABSTRACTWind Power Plant is a power plant that uses wind as an energy resources to produce electrical energy. The Bengkulu region which is mostly a coastal area with conditions of strong wind speeds that can be utilized as a source of wind power generation. Wind energy can be utilized as an alternative and renewable energy source using wind turbine. Wind turbine performance depends on the shape, position and dimensions of the turbine, etc. In this study focus on the design of wind power plants with horizontal axis turbine position and vertical axis turbine position. Wind turbine was designed with 3 blades made of wood materials. The permanent magnet DC generator are used for generator in the horizontal axis and vertical axis wind turbine positions with maximum power that can be generated at 800 Watt. Testing of the two types of turbines was carried out on the coast of Bengkulu city. The results shows that the horizontal axis wind power plant design starts rotating at a wind speed of 3.5 m / s, while the vertical axis wind power plant design starts rotating at a wind speed of 6.5 m / s. The voltage generated by the horizontal axis wind power plant at a wind speed of 3.5 m / s is 12 Volts. The voltage generated by the vertical axis wind power plant at a wind speed of 6.5 m / s is 9 Volts.
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Sang, Le Quang, Takao Maeda, and Yasunari Kamada. "Study effect of extreme wind direction change on 3-bladed horizontal axis wind turbine." International Journal of Renewable Energy Development 8, no. 3 (October 22, 2019): 261–66. http://dx.doi.org/10.14710/ijred.8.3.261-266.

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The Horizontal Axis Wind Turbines (HAWT) are used very popular in the world. They were installed mainly on land. However, on the land, the wind regime change is very complex such as high turbulence and constantly changing wind direction. In the International Electrotechnical Commission (IEC) 61400-1 standard, the wind regime is devided into the normal wind conditions and the extreme wind conditions. This study will focus on the extreme wind direction change and estimate the aerodynamic forces acting on a 3-bladed HAWT under this condition. Because the extreme wind direction change may cause extreme loads and it will affect the lifetime of HAWTs. This issue is experimented in the wind tunnel in Mie University, Japan to understand these effects. The wind turbine model is the 3-bladed HAWT type and using Avistar airfoil for making blades. A 6-component balance is used to measure the forces and the moments acting on the entire wind turbine in the three directions of x, y and z-axes. This study estimates the load fluctuation of the 3-bladed wind turbine under extreme wind direction change. The results show that the yaw moment and the pitch moment under the extreme wind direction change fluctuate larger than the normal wind condition. Specifically, before the sudden wind direction change happened, the averaged maximum pitch moment MX is -1.78 Nm, and after that MX is 4.45 Nm at inrush azimuth of 0°.©2019. CBIORE-IJRED. All rights reserved
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GALLO TORRES, MARLON, ENEKO MOLA SANZ, IGNACIO MUGURUZA FERNANDEZ DE VALDERRAMA, AITZOL UGARTEMENDIA ITURRIZAR, GONZALO ABAD BIAIN, and DAVID CABEZUELO ROMERO. "STATE OF THE ART OF SMALL WIND ENERGY ANALYSING DIFFERENT CONTROLS." DYNA 97, no. 1 (January 1, 2022): 11. http://dx.doi.org/10.6036/10376.

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There are two wind turbine topologies according to the axis of rotation: horizontal axis, "Horizontal Axis Wind Turbines" (HAWT) and vertical axis, "Vertical Axis Wind Turbines" (VAWT) [2]. HAWT turbines are used for high power generation as they have a higher energy conversion efficiency [2]. However, VAWTs are used in mini wind applications because they do not need to be oriented to the prevailing wind and have lower installation cost.
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Maeda, Takao, Yasunari Kamada, Tsutomu Kakinaga, and Keita Nakano. "Measurement of Wake behind Horizontal Axis Wind Turbine(Fluid Machinery)." Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2005 (2005): 519–24. http://dx.doi.org/10.1299/jsmeicjwsf.2005.519.

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Guo, Jia, and Liping Lei. "Flow Characteristics of a Straight-Bladed Vertical Axis Wind Turbine with Inclined Pitch Axes." Energies 13, no. 23 (November 28, 2020): 6281. http://dx.doi.org/10.3390/en13236281.

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Currently, vertical axis wind turbines (VAWT) are considered as an alternative technology to horizontal axis wind turbines in specific wind conditions, such as offshore farms. However, complex unsteady wake structures of VAWTs exert a significant influence on performance of wind turbines and wind farms. In the present study, instantaneous flow fields around and downstream of an innovative VAWT with inclined pitch axes are simulated by an actuator line model. Unsteady flow characteristics around the wind turbine with variations of azimuthal angles are discussed. Several fluid parameters are then evaluated on horizontal and vertical planes under conditions of various fold angles and incline angles. Results show that the total estimated wind energy in the shadow of the wind turbine with an incline angle of 30° and 150° is 4.6% higher than that with an incline angle of 90°. In this way, appropriate arrangements of wind turbines with various incline angles have the potential to obtain more power output in a wind farm.
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Dissertations / Theses on the topic "Horizontal Axis Wind Turbine"

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Nygard, Øyvind Vik. "Wake behind a horizontal-axis wind turbine." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13691.

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In this paper theory on cylinder and wind turbine wakes have been studied, and experimental work on the wake behind a wind turbine have been carried out in the Fluids engineering laboratory at NTNU.The objective of this paper is to show and explain how the wake from the tower of a wind turbine develops and interacts with the rotor wake. It is desirable to study the wake for different operating conditions of the wind turbine to see how the wake development is affected. A summary of classical wake theory, aerodynamics and wind turbine wakes will be given. Measurements in the wake of a cylinder fitted with pressure taps for drag calculation will be compared to theory and used as a reference. Also, the wake behind the wind turbine tower with the blades taken off will be studied and compared to the tower wake found behind the operating wind turbine.For comparison, reference measurements were done in the wake behind a cylinder and behind the free standing wind turbine tower without blades. The drag coefficient obtained from pressure measurements on the cylinder surface were 1.077 and match the expected value of 1.2 fairly well. However, neither the shape nor the maximum velocity deficit measured in the wake fit the theoretical profile. Drag coefficients calculated from the momentum deficit across the wake were only in the range of 0.65, which is almost half of the expected, and the huge deviation from theory could not be explained. With values between 1.07 and 1.50 the measured drag coefficients in the wake of the tower alone were also not consistent with theory. The shape of the tower wake profile coincides better with theory than the cylinder wake, but the maximum velocity deficit is generally lower than predicted by theory. Difference in drag can be explained with blockage effect and the smaller velocity deficit may be attributed to the free stream flow over the top of the tower interfering with the wake downstream of the tower.Wake surveys behind the wind turbine were done at three operating conditions: Optimum tip speed ratio; low tip speed ratio, with power output half of output at best point operation; and high tip speed ratio, with power output half of output at best point operation. The increased turbulence level behind the rotor the flow seen by the tower is believed to creates a turbulent boundary layer which stays attached to the surface to a point further back on the tower, creating a narrower and weaker wake compared the free standing tower wake. Optimum turbine operation gives a stronger rotation of the wake doe to the higher torque on the blades compared to the two other cases. At high TSR the wake is more uniform, and the tower wake disappears faster than in the wake of the turbine operating at lower TSR. The Strouhal number found in all the wakes match well with theory and does not seem to be affected by the rotor wake except that the tower vortices dies out quicker.
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Hankin, David. "Wake impacting on a horizontal axis wind turbine." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/24565.

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Offshore wind is set to contribute a significant portion of the UK's renewable energy production. In order to achieve this, installation costs must be reduced and energy density optimised, but this must be balanced with the increase in maintenance costs resulting from fatigue due to wake impact. The aim of this thesis is to investigate the effects of horizontal axis wind turbine wake impact on a downstream rotor. A force-free wake implementation of the unsteady vortex lattice method has been developed in order to simulate the flow around the downstream rotor, including the effects of an upstream rotor wake, uncorrelated wind field and the dynamic inflow response of the turbine wake. In addition, a series of wind tunnel experiments were undertaken to characterise the wake of a horizontal axis wind turbine and measure time histories of the turbine thrust and blade root bending moments in uniform and turbulent inflow and upstream rotor wake impact. Comparisons are made between the model and wind tunnel experiments for a range of flow cases: uniform inflow, turbulent inflow and operation in an upstream rotor wake at varying degrees of lateral offset. The upstream flow field is modelled on a Cartesian grid, following the assumption of frozen turbulence. For both the turbulent flow and upstream rotor wake, a simplified model is used as a starting point and then refined to better model the effect of turbulence. Ambient turbulence is found to have minimal impact on the mean response of the rotor, suggesting that a linearised approach can be taken in the numerical modelling of turbulence effects. The simple model better predicts the low frequency response, but does not capture the per revolution frequencies identified by the refined model, which also better predicts the admittance. The response of the rotor to an aligned upstream rotor wake is found to be dominated by the wake turbulence, although the proposed model does not reproduce the measured response. However, for laterally offset upstream rotor wakes the mean velocity deficit is the dominant factor and the model captures the response, including the shift to higher bending moment cycles which will contribute to increased fatigue.
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Al-Khudairi, Othman. "Structural performance of horizontal axis wind turbine blade." Thesis, Kingston University, 2014. http://eprints.kingston.ac.uk/32197/.

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The power output from a wind turbine is proportional to rotor swept area and as a result in the past 30 years continuous effort has been made to design larger blades. In this period, the blade length has been increased about 10 times since 1980s to present time. With the longest blade currently measuring more than 100m in length, wind turbine blade designers and manufacturers face enormous challenges to encounter the effect of increased weight and other loads on fatigue durability of the blade. Wind turbine blades are mainly made from glass fibre reinforced plastic (GFRP) composite. materials. As a result, in the design of various parts of wind turbine blades such as the shear web, spar cap and the aerofoil the fatigue behaviour of F RP materials is required. The performance of these parts as well as the adhesively bonded joint under fatigue loading is crucial for structural integrity of a long lasting blade. During operation, delamination can initiate and propagate shortening blade life; hence, characterisation of failure envelope of GFRP laminates under different loading mode is necessary. In this regard in this project, quasi-static tests were carried out to find mode 1, mode 11 and mixed mode I/11 delamination fracture toughness using DCB, ENF and MMB tests and the fracture envelope was established for various mode mixity. In the next stage, the stress-lifetime (S-N) diagrams of the GFRP was studied. Fatigue-life experiments on three different types of loading, i.e. tension-tension at R=0.1, 0.5, tension- compression at R=-1 and compression-compression at R=2 and R=10 were performed. From the results of S-N diagrams, the constant life diagrams (CLD) for 90 degree and 0 degree fibre directions were constructed. CLD diagrams are useful for prediction of fatigue lifetime for loading condition that no experimental data available. The analysis of delamination crack propagation under cyclic loading was next area of the research. The onset life and propagation delamination crack grth of 0//0 interface of GR P laminate in mode I loading using DCB specimens was investigated and the Gm. from the onset life test was determined. From the fitted curve to mode I experimental propagation data the Paris’ law coefficient for the laminated GFRP in mode I was determined. The mode II fatigue crack growth in laminated 0//0 GFRP material was also investigated using ENF specimens. The fatigue behaviour in this mode is analysed based on application of Paris’ law as a function of energy release rate for mode II loading. From the fitted curve to experimental data, the Paris’ law coefficient for the laminated GFRP in mode II was determined. The effect of fatigue delamination growth on fracture surface was studied by fractography analysis of SEM images of fracture surfaces. Studying the behaviour of GFRP under cyclic loading and delamination under static and dynamic load led to full-scale testing of wind turbine blade to establish damage tolerance of the blade under cyclic loading. The sensitivity of wind turbine blade to damage has considerable interest for turbine operators and manufacturers. For full-scale fatigue testing, calibration test and modal analysis of a 45.7m blade has been done and moment-strain diagram and natural frequencies of the blade were obtained. Next, the blade sensitivity to damage under fatigue loading was investigated. The blade has been damaged intentionally by initially inserting a crack of 0.2m between the shear web and spar cap and later it was extended to 1m. The effect of these damages on the modal shape, natural frequencies and strains at various locations of the blade were investigated. The damaged blade fatigue tested, the structural integrity and growth of damage were monitored, and the results were discussed. Finally for the improvement of delamination resistance for joints between spar beam and aero-shell stitching method was used. T-beam and box beam joint were chosen as the platform for testing the stitching effect on the delamination. Various pattern of stitching was applied and the optimum pattern was determined.
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Gwon, Tae gyun. "Structural Analyses of Wind Turbine Tower for 3 kW Horizontal Axis Wind Turbine." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/600.

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Structure analyses of a steel tower for Cal Poly's 3 kW small wind turbine is presented. First, some general design aspects of the wind turbine tower are discussed: types, heights, and some other factors that can be considered for the design of wind turbine tower. Then, Cal Poly's wind turbine tower design is presented, highlighting its main design features. Secondly, structure analysis for Cal Poly's wind turbine tower is discussed and presented. The loads that are specific to the wind turbine system and the tower are explained. The loads for the static analysis of the tower were calculated as well. The majority of the structure analysis of the tower was performed using the finite element method (FEM). Using Abaqus, commercial FEM software, both static and dynamic structural analyses were performed. A simplified finite element model that represents the wind turbine tower was created using beam, shell, and inertia elements. An ultimate load condition was applied to check the stress level of the tower in the static analysis. For the dynamic analysis, the frequency extraction was performed in order to obtain the natural frequencies and the mode shapes of the tower. Using the results, the response spectrum analysis and the transient dynamic analysis, which are based on the modal superposition method, were performed in order to see the structure's response for earthquakes that are likely to happen at the wind turbine installation site.
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Duran, Serhat. "Computer-aided Design Of Horizontal-axis Wind Turbine Blades." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12605790/index.pdf.

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Designing horizontal-axis wind turbine (HAWT) blades to achieve satisfactory levels of performance starts with knowledge of the aerodynamic forces acting on the blades. In this thesis, HAWT blade design is studied from the aspect of aerodynamic view and the basic principles of the aerodynamic behaviors of HAWTs are investigated. Blade-element momentum theory (BEM) known as also strip theory, which is the current mainstay of aerodynamic design and analysis of HAWT blades, is used for HAWT blade design in this thesis. Firstly, blade design procedure for an optimum rotor according to BEM theory is performed. Then designed blade shape is modified such that modified blade will be lightly loaded regarding the highly loaded of the designed blade and power prediction of modified blade is analyzed. When the designed blade shape is modified, it is seen that the power extracted from the wind is reduced about 10% and the length of modified blade is increased about 5% for the same required power. BLADESIGN which is a user-interface computer program for HAWT blade design is written. It gives blade geometry parameters (chord-length and twist distributions) and design conditions (design tip-speed ratio, design power coefficient and rotor diameter) for the following inputs
power required from a turbine, number of blades, design wind velocity and blade profile type (airfoil type). The program can be used by anyone who may not be intimately concerned with the concepts of blade design procedure and the results taken from the program can be used for further studies.
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Wang, Tongguang. "Unsteady aerodynamic modelling of horizontal axis wind turbine performance." Thesis, University of Glasgow, 1999. http://theses.gla.ac.uk/4039/.

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The present work presents a study of unsteady aerodynamic modelling of horizontal axis wind turbine performance. The unsteady aspects addressed in this work include effects of variations in turbine inflow velocity due to operation in yawed flow, in the atmospheric boundary layer, in a wind tunnel, and due to the tower wake. In each case, the basis for the analysis is a prescribed wake vortex model, the development and enhancement of which has been the main focus of the work. A high resolution model has been developed to meet the requirement for adequate representation of the tower shadow effects. A near wake dynamic model has been enhanced with appropriate modifications and integrated into the prescribed wake scheme to produce a hybrid method capable of predicting the detailed high resolution unsteady response in the tower shadow region. The azimuthal interval used within the shadow region can be reduced to 0.5° whilst the computational cost introduced by the high resolution near wake model is almost negligible. A low order source panel method and the prescribed wake model have been combined into a coupled scheme capable of assessing the basic effect of wind tunnel walls on wind turbine flow and performance. The wind tunnel walls are discretised into a series of panels on which source singularities are placed. The source strengths are related to the turbine bound and wake vorticities via their induced velocities. The geometry of the turbine wake is obtained by superposition of the contribution of the disturbance velocities due to the source panels upon the prescribed wake. This new wake structure modifies the wind turbine aerodynamic performance in turn.
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Abdulqadir, Sherwan Ahmed. "Turbulence modelling for horizontal axis wind turbine rotor blades." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/turbulence-modeling-for-horizontal-axis-wind-turbine-rotor-blades(2536b213-3a0c-4977-ac39-916a9fce98d2).html.

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This Thesis aims to assess the reliability of turbulence models in predicting the flow fields around the horizontal axis wind turbine (HAWT) rotor blades and also to improve our understanding of the aerodynamics of the flow field around the blades. The simulations are validated against data from the NREL/NASA Phase VI wind turbine experiments. The simulations encompass the use of fourteen turbulence models including low-and high-Reynolds-number, linear and non-linear eddy-viscosity models and Reynolds stress models. The numerical procedure is based on the finite-volume discretization of the 3D unsteady Reynolds-Averaged Navier-Stokes equations in an inertial reference frame with the sliding mesh technique to follow the motion of the rotor blades. Comparisons of power coefficient, normalised thrust, local surface pressure coefficients (CP) and the radial variation of the section average of normal force coefficients with published experimental data over a range of tip-speed ratios, lead to the identification of the turbulence models that can reliably reproduce the values of the key performance indicators. The main contributions of this study are in establishing which RANS models can produce quantitatively reliable simulations of wind turbine flows and in presenting the flow evolution over a range of operating conditions. At low (relative to the blade tip speed) wind speeds the flow over the blade surfaces remains attached and all RANS models return the correct values of key performance coefficients. At higher wind speeds there is circumferential flow separation over the downwind surface of the blade, which eventually spreads over the entire surface, Moreover, within the separation bubble the centrifugal force pumps the flow outwards, which at the higher wind speeds suppresses the formation of the classical tip vortices. More refined RANS models which do not rely on the linear effective viscosity approximation generally lead to more reliable predictions over this range of higher wind speeds. In particular the Gibson-Launder version of the Reynolds stress transport model and the high-Re versions of the Lien et al non-linear k-ε produce consistently reliable simulations over the entire range of wind speeds. By contrast some popular linear effective viscosity models, like the SST (k-ω) and the v^2-f, perform the poorest over this complex flow range. Finally all RANS models are also able to predict the dominant (lowest) frequency of the pressure fluctuations and the non-linear effective viscosity models, the Launder and Shima version of RSM and the SST are also able to return some of the higher frequencies measured.
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Caboni, Marco. "Probabilistic design optimization of horizontal axis wind turbine rotors." Thesis, University of Glasgow, 2016. http://theses.gla.ac.uk/7338/.

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Considerable interest in renewable energy has increased in recent years due to the concerns raised over the environmental impact of conventional energy sources and their price volatility. In particular, wind power has enjoyed a dramatic global growth in installed capacity over the past few decades. Nowadays, the advancement of wind turbine industry represents a challenge for several engineering areas, including materials science, computer science, aerodynamics, analytical design and analysis methods, testing and monitoring, and power electronics. In particular, the technological improvement of wind turbines is currently tied to the use of advanced design methodologies, allowing the designers to develop new and more efficient design concepts. Integrating mathematical optimization techniques into the multidisciplinary design of wind turbines constitutes a promising way to enhance the profitability of these devices. In the literature, wind turbine design optimization is typically performed deterministically. Deterministic optimizations do not consider any degree of randomness affecting the inputs of the system under consideration, and result, therefore, in an unique set of outputs. However, given the stochastic nature of the wind and the uncertainties associated, for instance, with wind turbine operating conditions or geometric tolerances, deterministically optimized designs may be inefficient. Therefore, one of the ways to further improve the design of modern wind turbines is to take into account the aforementioned sources of uncertainty in the optimization process, achieving robust configurations with minimal performance sensitivity to factors causing variability. The research work presented in this thesis deals with the development of a novel integrated multidisciplinary design framework for the robust aeroservoelastic design optimization of multi-megawatt horizontal axis wind turbine (HAWT) rotors, accounting for the stochastic variability related to the input variables. The design system is based on a multidisciplinary analysis module integrating several simulations tools needed to characterize the aeroservoelastic behavior of wind turbines, and determine their economical performance by means of the levelized cost of energy (LCOE). The reported design framework is portable and modular in that any of its analysis modules can be replaced with counterparts of user-selected fidelity. The presented technology is applied to the design of a 5-MW HAWT rotor to be used at sites of wind power density class from 3 to 7, where the mean wind speed at 50 m above the ground ranges from 6.4 to 11.9 m/s. Assuming the mean wind speed to vary stochastically in such range, the rotor design is optimized by minimizing the mean and standard deviation of the LCOE. Airfoil shapes, spanwise distributions of blade chord and twist, internal structural layup and rotor speed are optimized concurrently, subject to an extensive set of structural and aeroelastic constraints. The effectiveness of the multidisciplinary and robust design framework is demonstrated by showing that the probabilistically designed turbine achieves more favorable probabilistic performance than those of the initial baseline turbine and a turbine designed deterministically.
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Gomez-Iradi, Sugoi. "CFD for Horizontal Axis Wind Turbines." Thesis, University of Liverpool, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511051.

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Worasinchai, Supakit. "Small wind turbine starting behaviour." Thesis, Durham University, 2012. http://etheses.dur.ac.uk/4436/.

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Small wind turbines that operate in low-wind environments are prone to suffer performance degradation as they often fail to accelerate to a steady, power-producing condition. The behaviour during this process is called “starting behaviour” and it is the subject of this present work. This thesis evaluates potential benefits that can be obtained from the improvement of starting behaviour, investigates, in particular, small wind turbine starting behaviour (both horizontal- and vertical-axis), and presents aerofoil performance characteristics (both steady and unsteady) needed for the analysis. All of the investigations were conducted using a new set of aerodynamic performance data of six aerofoils (NACA0012, SG6043, SD7062, DU06-W-200, S1223, and S1223B). All of the data were obtained at flow conditions that small wind turbine blades have to operate with during the startup - low Reynolds number (from 65000 to 150000), high angle of attack (through 360◦), and high reduced frequency (from 0.05 to 0.20). In order to obtain accurate aerodynamic data at high incidences, a series of CFD simulations were undertaken to illustrate effects of wall proximity and to determine test section sizes that offer minimum proximity effects. A study was carried out on the entire horizontal-axis wind turbine generation system to understand its starting characteristics and to estimate potential benefits of improved starting. Comparisons of three different blade configurations reveal that the use of mixed-aerofoil blades leads to a significant increase in starting capability. The improved starting capability effectively reduces the time that the turbine takes to reach its power-extraction period and, hence, an increase in overall energy yield. The increase can be as high as 40%. Investigations into H-Darriues turbine self-starting capability were made through the analogy between the aerofoil in Darrieus motion and flapping-wing flow mechanisms. The investigations reveal that the unsteadiness associated with the rotor is key to predicting its starting behaviour and the accurate prediction can be made when this transient aerofoil behaviour is correctly modelled. The investigations based upon the analogy also indicate that the unsteadiness can be exploited to promote the turbine ability to self-start. Aerodynamically, this exploitation is related to the rotor geometry itself.
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Books on the topic "Horizontal Axis Wind Turbine"

1

Madsen, Helge Aagaard. Aerodynamics of a horizontal-axis wind turbine in natural conditions. Roskilde: Risø National Laboratory, 1991.

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Krogsgaard, Jorgen. The Horizontal- Axis Research Wind Turbine At Riso National Laboratory. Roskilde, Denmark: Riso National Laboratory, 1985.

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Madsen, Peter Hauge. Design turbulence loads on horizontal-axis wind turbines. Roskilde, Denmark: Riso National Laboratory, 1986.

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Sørensen, Jens Nørkær. General Momentum Theory for Horizontal Axis Wind Turbines. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-22114-4.

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Miller, Dean R. Analytical model for predicting emergency shutdown of a two-blade d horizontal axis wind turbine. [Washington, DC: U.S. Dept. Energy, Wind Energy Technology Division, 1985.

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Larsen, Gunner C. Design basis for horizontal-axis wind turbines-theoretical background. Roskilde: Riso National Laboratory, 1989.

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Shepherd, Kevin P. Comparison of measured and calculated sound pressure levels around a large horizontal axis wind turbine generator. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1989.

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Corrigan, Robert D. Performance comparison between NACA 23024 and NACA 64-618 airfoil configured rotors for horizontal-axis wind turbines. [Washington, D.C.?: National Aeronautics and Space Administration, 1985.

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Corrigan, Robert D. Performance comparison between NACA 23024 and NACA 64-́618 airfoil configured rotors for horizontal-axis wind turbines. [Washington, D.C.?: National Aeronautics and Space Administration, 1985.

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Corrigan, Robert D. Design and initial testing of a one-bladed 30-meter rotor on the NASA-DIE Mod-o wind turbine. Washington, DC: National Aeronautics and Space Administration, 1986.

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Book chapters on the topic "Horizontal Axis Wind Turbine"

1

Koch, Grady, and Elias Koch. "The Horizontal-Axis Turbine." In LEGO Wind Energy, 67–83. Berkeley, CA: Apress, 2019. http://dx.doi.org/10.1007/978-1-4842-4439-5_5.

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Nelson, Vaughn. "Horizontal Axis Wind Turbines." In Innovative Wind Turbines, 21–41. First edition. | Boca Raton, FL : CRC press/Taylor & FrancisGroup, [2020]: CRC Press, 2019. http://dx.doi.org/10.1201/9781003010883-2.

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Tefera, Abiyu Mersha, Abdulkadir Aman, and Muluken Temesgen Tigabu. "Experimental Investigation of Augmented Horizontal Axis Wind Turbine." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 566–75. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43690-2_42.

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Usha Sri, P., and Chirla Jeevesh. "Performance Analysis of a Horizontal Axis Wind Lens Wind Turbine." In Learning and Analytics in Intelligent Systems, 440–48. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-24314-2_53.

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Leishman, J. Gordon. "Aerodynamics of Horizontal Axis Wind Turbines." In Advances in Wind Energy Conversion Technology, 1–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-540-88258-9_1.

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Rasam, Amin, Zeinab Pouransari, Karl Bolin, and Ciarán J. O’Reilly. "Detached-Eddy Simulation of a Horizontal Axis Wind Turbine." In Progress in Hybrid RANS-LES Modelling, 357–67. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-70031-1_30.

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Acar, Gizem, and Brian F. Feeny. "Linear Modal Analysis of a Horizontal-Axis Wind Turbine Blade." In Special Topics in Structural Dynamics, Volume 6, 125–31. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15048-2_12.

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Amano, Ryoichi S. "Aerodynamic Behavior of Rear-Tubercle Horizontal Axis Wind Turbine Blade." In Sustainable Development for Energy, Power, and Propulsion, 545–62. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5667-8_22.

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Caboni, Marco, Edmondo Minisci, and Michele Sergio Campobasso. "Robust Aerodynamic Design Optimization of Horizontal Axis Wind Turbine Rotors." In Computational Methods in Applied Sciences, 225–40. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11541-2_14.

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Dosaev, Marat, Liubov Klimina, and Yury Selyutskiy. "A Vehicle Driven Upwind by the Horizontal Axis Wind Turbine." In EuCoMeS 2018, 155–61. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98020-1_18.

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Conference papers on the topic "Horizontal Axis Wind Turbine"

1

Moghadassian, Behnam, and Anupam Sharma. "Inverse Design of Horizontal Axis Wind Turbine Blades." In 35th Wind Energy Symposium. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-1848.

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Khamlaj, Tariq A., and Markus Rumpfkeil. "Optimization Study of Shrouded Horizontal Axis Wind Turbine." In 2018 Wind Energy Symposium. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-0996.

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Sina, Seyedali. "Aeroelastic Stability of Horizontal Axis Wind Turbine Blades." In 2021 7th Iran Wind Energy Conference (IWEC). IEEE, 2021. http://dx.doi.org/10.1109/iwec52400.2021.9466973.

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Yusong, Yang, Evgeny Solomin, and Wang Lei. "Horizontal Axis Wind Turbine MPPT Control Research." In 2020 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM). IEEE, 2020. http://dx.doi.org/10.1109/icieam48468.2020.9112043.

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Khalil, Essam E., Taher AbouDief, Ahmed ElDegwy, and Ayman Zaki. "Aerodynamic Performance of Horizontal Axis Wind Turbine." In 15th International Energy Conversion Engineering Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-5037.

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Haibo, Jiang, Cheng Zhongqing, and Zhao Yunpeng. "Torque Limit of Horizontal Axis Wind Turbine." In 1st International Conference on Mechanical Engineering and Material Science). Paris, France: Atlantis Press, 2012. http://dx.doi.org/10.2991/mems.2012.114.

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Arifin, Fatahul, RD Kusumanto, Yohandri Bow, Ahmad Zamheri, Rusdianasari Rusdianasari, Min Wen Wang, Afries Susandi, and Yusuf Dewantoro Herlambang. "Modelling Design Diffuser Horizontal Axis Wind Turbine." In 5th FIRST T1 T2 2021 International Conference (FIRST-T1-T2 2021). Paris, France: Atlantis Press, 2022. http://dx.doi.org/10.2991/ahe.k.220205.033.

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Sankaranarayanan, K., S. Krishnakumar, G. Victor PaulRaj, R. Rahul, and S. Chitra Ganapathi. "Wind Tunnel Experiment on a Small Horizontal Axis Wind Turbine." In Eighth Asia-Pacific Conference on Wind Engineering. Singapore: Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-8012-8_225.

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Schreck, S., and M. Robinson. "Rotational augmentation of horizontal axis wind turbine blade aerodynamic response." In 2002 ASME Wind Energy Symposium. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2002. http://dx.doi.org/10.2514/6.2002-29.

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Schreck, S., and M. Robinson. "Rotational Augmentation of Horizontal Axis Wind Turbine Blade Aerodynamic Response." In ASME 2002 Wind Energy Symposium. ASMEDC, 2002. http://dx.doi.org/10.1115/wind2002-29.

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Surface pressure data were acquired using the NREL Unsteady Aerodynamics Experiment, a full-scale horizontal axis wind turbine, which was erected in the NASA Ames 80 ft × 120 ft wind tunnel. Data were collected first for a stationary blade, and then for a rotating blade with the turbine disk at zero yaw. Analyses compared aerodynamic forces and surface pressure distributions under rotating conditions against analogous baseline data acquired from the stationary blade. This comparison allowed rotational modifications to blade aerodynamics to be characterized in detail. Rotating conditions were seen to dramatically amplify aerodynamic forces, and radically alter surface pressure distributions. These and subsequent findings will more fully reveal the structures and interactions responsible for these flow field enhancements, and help establish the basis for formalizing comprehension in physics based models.
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Reports on the topic "Horizontal Axis Wind Turbine"

1

Powell, D. C., and J. R. Connell. Review of wind simulation methods for horizontal-axis wind turbine analysis. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/5594885.

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Author, Not Given. Advanced horizontal axis wind turbines in windfarms. Office of Scientific and Technical Information (OSTI), January 2009. http://dx.doi.org/10.2172/1216673.

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Hansen, A. C. Yaw dynamics of horizontal axis wind turbines. Office of Scientific and Technical Information (OSTI), May 1992. http://dx.doi.org/10.2172/5406093.

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Hansen, A. C. Yaw dynamics of horizontal axis wind turbines. Final report. Office of Scientific and Technical Information (OSTI), May 1992. http://dx.doi.org/10.2172/10144778.

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Stoddard, F., V. Nelson, K. Starcher, and B. Andrews. Determination of Elastic Twist in Horizontal Axis Wind Turbines (HAWTs). Office of Scientific and Technical Information (OSTI), June 2006. http://dx.doi.org/10.2172/891106.

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Hansen, A., and C. Xudong. Yaw dynamics of horizontal axis wind turbines: Second annual report. Office of Scientific and Technical Information (OSTI), March 1989. http://dx.doi.org/10.2172/6013227.

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Miller, Mark S., and Derek E. Shipley. Structural Effects of Unsteady Aerodynamic Forces on Horizontal Axis Wind Turbines. Office of Scientific and Technical Information (OSTI), August 1994. http://dx.doi.org/10.2172/10177977.

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Gyatt, G., and P. Lissaman. Development and testing of tip devices for horizontal axis wind turbines. Office of Scientific and Technical Information (OSTI), May 1985. http://dx.doi.org/10.2172/5988121.

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Butterfield, C. P., W. P. Musial, and D. A. Simms. Combined Experiment Phase 1. [Horizontal axis wind turbines: wind tunnel testing versus field testing]. Office of Scientific and Technical Information (OSTI), October 1992. http://dx.doi.org/10.2172/6882369.

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Gyatt, G. Development and testing of vortex generators for small horizontal axis wind turbines. Office of Scientific and Technical Information (OSTI), July 1986. http://dx.doi.org/10.2172/6801076.

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