Relevant bibliographies by topics / Wind Turbine Airfoil

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Wind Turbine Airfoil'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Wind Turbine Airfoil.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Wind Turbine Airfoil"

1

Zhao, Li Hua, Ming Liu, Tie Lv, and Xiao Qun Mei. "Numerical Simulation of Vertical Axis Wind Turbine Blade Airfoil Performance." Applied Mechanics and Materials 529 (June 2014): 173–77. http://dx.doi.org/10.4028/www.scientific.net/amm.529.173.

Full text
Abstract:
Research of blade airfoil aerodynamic characteristics is an important foundation for the vertical axis wind turbine aerodynamic design and performance analysis. CFD simulation software has been applied in this paper. Representative lift-type vertical axis wind turbine airfoil NACA0014, NACA2414, NACA4414, NACA6414, NACA8414 's aerodynamic simulation have been studied. Camber airfoil relative with the change in to the flow velocity is analyzed. At different angles of attack effect on the aerodynamic performance of wind turbines, variation of parameters for airfoil aerodynamic had been analyzed. It will help the optimal design of airfoils for vertical axis wind turbines.
APA, Harvard, Vancouver, ISO, and other styles
2

Khalil, Yassine, Lhoussaine Tenghiri, Farid Abdi, and Anas Bentamy. "Improvement of aerodynamic performance of a small wind turbine." Wind Engineering 44, no. 1 (May 23, 2019): 21–32. http://dx.doi.org/10.1177/0309524x19849847.

Full text
Abstract:
The aerodynamic performance of horizontal-axis wind turbines is strongly dependent on many parameters, among which the airfoil type and the blade geometry (mainly defined by the chord and the twist distributions) are considered the most critical ones. In this article, an approach giving the appropriate airfoil for a small wind turbine design was conducted by performing an aerodynamic improvement of the blade’s airfoil. First, a preliminary design of the rotor blades of a small wind turbine (11 kW) was conducted using the small wind turbine rotor design code. This preliminary approach was done for different airfoils, and it resulted in a maximum power coefficient of 0.40. Then, the aerodynamic efficiency of the wind turbine was improved by modifying the geometry of the airfoils. This technique targets the optimization of the lift-to-drag ratio (Cl/Cd) of the airfoil within a range of angles of attack. Also, a non-uniform rational B-spline approximation of the airfoil was adopted in order to reduce the number of the design variables of the optimization. This methodology determined the best airfoil for the design of a small wind turbine, and it gave an improved power coefficient of 0.42.
APA, Harvard, Vancouver, ISO, and other styles
3

Maleki Dastjerdi, Sajad, Kobra Gharali, Armughan Al-Haq, and Jatin Nathwani. "Application of Simultaneous Symmetric and Cambered Airfoils in Novel Vertical Axis Wind Turbines." Applied Sciences 11, no. 17 (August 30, 2021): 8011. http://dx.doi.org/10.3390/app11178011.

Full text
Abstract:
Two novel four-blade H-darrieus vertical axis wind turbines (VAWTs) have been proposed for enhancing self-start capability and power production. The two different airfoil types for the turbines are assessed: a cambered S815 airfoil and a symmetric NACA0018 airfoil. For the first novel wind turbine configuration, the Non-Similar Airfoils 1 (NSA-1), two NACA0018 airfoils, and two S815 airfoils are opposite to each other. For the second novel configuration (NSA-2), each of the S815 airfoils is opposite to one NACA0018 airfoil. Using computational fluid dynamics (CFD) simulations, static and dynamic conditions are evaluated to establish self-starting ability and the power coefficient, respectively. Dynamic stall investigation of each blade of the turbines shows that NACA0018 under dynamic stall impacts the turbine’s performance and the onset of dynamic stall decreases the power coefficient of the turbine significantly. The results show that NSA-2 followed by NSA-1 has good potential to improve the self-starting ability (13.3%) compared to the turbine with symmetric airfoils called HT-NACA0018. In terms of self-starting ability, NSA-2 not only can perform in about 66.67% of 360° similar to the wind turbine with non-symmetric airfoils (named HT-S815) but the power coefficient of NSA-2 at the design tip speed ratio of 2.5 is also 4.5 times more than the power coefficient of HT-S815; the power coefficient difference between HT-NACA0018 and HT-S815 (=0.231) is decreased significantly when HT-S815 is replaced by NSA-2 (=0.076). These novel wind turbines are also simple.
APA, Harvard, Vancouver, ISO, and other styles
4

Chen, Jin, Jiang Tao Cheng, and Wen Zhong Shen. "Research on Design Methods and Aerodynamics Performance of CQU-DTU-B21 Airfoil." Advanced Materials Research 455-456 (January 2012): 1486–90. http://dx.doi.org/10.4028/www.scientific.net/amr.455-456.1486.

Full text
Abstract:
This paper presents the design methods of CQU-DTU-B21 airfoil for wind turbine. Compared with the traditional method of inverse design, the new method is described directly by a compound objective function to balance several conflicting requirements for design wind turbine airfoils, which based on design theory of airfoil profiles, blade element momentum (BEM) theory and airfoil Self-Noise prediction model. And then an optimization model with the target of maximum power performance on a 2D airfoil and low noise emission of design ranges for angle of attack has been developed for designing CQU-DTU-B21 airfoil. To validate the optimization results, the comparison of the aerodynamics performance by XFOIL and wind tunnels test respectively at Re=3×106 is made between the CQU-DTU-B21 and DU93-W-210 which is widely used in wind turbines.
APA, Harvard, Vancouver, ISO, and other styles
5

Yi, Mei, Qu Jianjun, and Li Yan. "Airfoil Design for Vertical Axis Wind Turbine Operating at Variable Tip Speed Ratios." Open Mechanical Engineering Journal 9, no. 1 (October 7, 2015): 1007–16. http://dx.doi.org/10.2174/1874155x01509011007.

Full text
Abstract:
A new airfoil design method for H type vertical axis wind turbine is introduced in the present study. A novel indicator is defined to evaluate vertical axis wind turbine aerodynamic performance at variable tip speed ratios and selected as the airfoil design objective. A mathematic model describing the relationship between airfoil design variables and objective is presented for direct airfoil design on the basis of regression design theory. The aerodynamic performance simulation is conducted by computational fluid dynamics approach validated by a wind tunnel test in the study. Based on the newly developed mathematic model, a new airfoil is designed for a given wind turbine model under constant wind speed of 8 m/s. Meanwhile, the comparison of aerodynamic performance for newly designed airfoil and existing vertical axis wind turbine airfoils is studied. It has been demonstrated that, by the novel indicator, the rotor aerodynamic performance at variable tip speed ratios with the newly designed airfoil is 6.78% higher than the one with NACA0015 which is the airfoil widely used in commercial H type vertical axis wind turbine.
APA, Harvard, Vancouver, ISO, and other styles
6

Tian, Weijun, Zhen Yang, Qi Zhang, Jiyue Wang, Ming Li, Yi Ma, and Qian Cong. "Bionic Design of Wind Turbine Blade Based on Long-Eared Owl’s Airfoil." Applied Bionics and Biomechanics 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/8504638.

Full text
Abstract:
The main purpose of this paper is to demonstrate a bionic design for the airfoil of wind turbines inspired by the morphology of Long-eared Owl’s wings. Glauert Model was adopted to design the standard blade and the bionic blade, respectively. Numerical analysis method was utilized to study the aerodynamic characteristics of the airfoils as well as the blades. Results show that the bionic airfoil inspired by the airfoil at the 50% aspect ratio of the Long-eared Owl’s wing gives rise to a superior lift coefficient and stalling performance and thus can be beneficial to improving the performance of the wind turbine blade. Also, the efficiency of the bionic blade in wind turbine blades tests increases by 12% or above (up to 44%) compared to that of the standard blade. The reason lies in the bigger pressure difference between the upper and lower surface which can provide stronger lift.
APA, Harvard, Vancouver, ISO, and other styles
7

Wu, Guo Qing, Xinghua Chen, Yang Cao, and Jing Ling Zhou. "Simulation and Test for Two Airfoils with Wind Guide Vane of VAWT." Advanced Materials Research 148-149 (October 2010): 1199–203. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.1199.

Full text
Abstract:
Two airfoils of vertical axis wind turbine (VAWT) were designed, and the wind guide vane was added for VAWT. By using Fluent and the environment wind tunnel, some results were simulated and tested for two different types of airfoils and its wind guide vane. The performance data on certain condition was obtained. Research showed that utilization of wind energy with guide vane wind turbine was higher than those without guide vane structure. The performance of airfoil was more excellent than airfoil . Wind guide vane structure is a new structure for wind turbine which will have a wide prospect.
APA, Harvard, Vancouver, ISO, and other styles
8

Revaz, Tristan, Mou Lin, and Fernando Porté-Agel. "Numerical Framework for Aerodynamic Characterization of Wind Turbine Airfoils: Application to Miniature Wind Turbine WiRE-01." Energies 13, no. 21 (October 27, 2020): 5612. http://dx.doi.org/10.3390/en13215612.

Full text
Abstract:
A numerical framework for the aerodynamic characterization of wind turbine airfoils is developed and applied to the miniature wind turbine WiRE-01. The framework is based on a coupling between wall-resolved large eddy simulation (LES) and application of the blade element momentum theory (BEM). It provides not only results for the airfoil aerodynamics but also for the wind turbine, and allows to cover a large range of turbine operating conditions with a minimized computational cost. In order to provide the accuracy and the flexibility needed, the unstructured finite volume method (FVM) and the wall-adapting local eddy viscosity (WALE) model are used within the OpenFOAM toolbox. With the purpose of representing the turbulence experienced by the blade sections of the turbine, a practical turbulent inflow is proposed and the effect of the inflow turbulence on the airfoil aerodynamic performance is studied. It is found that the consideration of the inflow turbulence has a strong effect on the airfoil aerodynamic performance. Through the application of the framework to WiRE-01 miniature wind turbine, a comprehensive characterization of the airfoil used in this turbine is provided, simplifying future studies. In the same time, the numerical results for the turbine are validated with experimental results and good consistency is found. Overall, the airfoil and turbine designs are found to be well optimized, even if the effective angle of attack of the blades should be reduced close to the hub.
APA, Harvard, Vancouver, ISO, and other styles
9

Grasso, Francesco, Domenico Coiro, Nadia Bizzarrini, and Giuseppe Calise. "Design of advanced airfoil for stall-regulated wind turbines." Wind Energy Science 2, no. 2 (July 27, 2017): 403–13. http://dx.doi.org/10.5194/wes-2-403-2017.

Full text
Abstract:
Abstract. Nowadays, all the modern megawatt-class wind turbines make use of pitch control to optimise the rotor performance and control the turbine. However, for kilowatt-range machines, stall-regulated solutions are still attractive and largely used for their simplicity and robustness. In the design phase, the aerodynamics plays a crucial role, especially concerning the selection/design of the necessary airfoils. This is because the airfoil performance is supposed to guarantee high wind turbine performance but also the necessary machine control capabilities. In the present work, the design of a new airfoil dedicated to stall machines is discussed. The design strategy makes use of a numerical optimisation scheme, where a gradient-based algorithm is coupled with the RFOIL code and an original Bezier-curves-based parameterisation to describe the airfoil shape. The performances of the new airfoil are compared in free- and fixed-transition conditions. In addition, the performance of the rotor is analysed, comparing the impact of the new geometry with alternative candidates. The results show that the new airfoil offers better performance and control than existing candidates do.
APA, Harvard, Vancouver, ISO, and other styles
10

Chen, Qing Yuan, Feng Lin Guo, and Jin Quan Xu. "Applications of a Coupled Methodology to the Wind Turbine Airfoils." Advanced Materials Research 516-517 (May 2012): 572–76. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.572.

Full text
Abstract:
In this study, a coupled methodology is proposed for the aerodynamic behavior of wind turbine airfoils. The idea is to combine a Navier-Stokes solver with a free vortex model. The zone for the calculation of CFD is confined to the surrounding of the airfoil, whilst the free vortex model accounts for the far field of the airfoil. The flow around the airfoil is assumed to be two-dimensional (2D) incompressible fully turbulent flow, which is modeled by two equation turbulence models. The computed aerodynamic coefficients are presented for two wind turbine airfoils and compared with wind tunnel data.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Wind Turbine Airfoil"

1

Sæta, Eivind. "Design of Airfoil for downwind wind turbine Rotor." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-12883.

Full text
Abstract:
This thesis is on the design of an airfoil for a downwind wind turbine rotor with thin flexible wings, for offshore floating conditions. It has been suggested that such a system would to be lighter, simpler and allow for the use of more efficient airfoils. There has been a significant amount of work done at NTNU to develop a “high-lift” airfoil. These are airfoils with very high lift-to-drag ratios. They operate very efficiently at their design angle, but tend to not work well over a range of angles and conditions, and have a sudden and dramatic stall characteristic. In this thesis, it is attempted to pick up the work done with the high-lift profiles at NTNU in the 1980’s, and develop a new profile which has performance in the high-lift range, but with a much smoother stall and more stable characteristics, and to do so for the typical conditions expected for the suggested turbine. A fictitious 5 MW version of the suggested turbine was created and analyzed with the blade element momentum method (BEM). This gave informative results about the conditions the new airfoil must operate in. The high-lift technology and the earlier reports from NTNU were studied. Based on this knowledge and the numerical values from the BEM calculations, a serious of new airfoils were developed. By using the simulation programs Xfoil and Fluent (CFD), it was possible to modify and test a large number of airfoils and find the desired qualities.It was possible to design airfoils that had performance in the high-lift range, while maintaining stable operation and having a soft stall, and also increase the lift coefficient to be able to design for lower angles of attack. The profiles created here appear to be suitable for wind turbines, and provide an impressive increase in performance compared to traditional airfoils.Extra effort was put into making airfoils that were unaffected by roughness, air properties and Reynolds number, as stable performance in varying conditions are necessary for wind turbine blades. This was done by using adverse pressure gradients to control the point of transition.A slow stall was achieved by letting the pressure recovery distribution gradually approach the local ideal Stratford distribution when moving back over the airfoil. This caused the flow separate at the back first, and then the separation would grow gradually forward with increasing angle of attack.The inclusion of a separation ramp also worked very well together with the high-lift design, and allowed for an increased lift coefficient and more stable operation during the region of early stall.The most successful profile created appears to be the AR profile. It combines a diverged Stratford distribution with a separation ramp and a pressure spike at the nose to control transition. It has a wider range, stalls later and softer, and has a much more stable performance with varying conditions compared to the original HOG profile from NTNU. At the design point, the maximum performance is reduced only 5.9 % compared to the HOG. For higher and lower angles of attack, and increased values of roughness and turbulence, the AR has an all round higher performance than the HOG. It appears to be usable for wind turbines, and would increase the maximum airfoil performance by up to 40 % compared to commonly used NACA profiles. More good profiles were made, with varying thickness, stall and performance. Depending on the exact local requirements of an application, this report offers several interesting profiles to choose from. For instance, the D2 profile has round shape and over 16 % thickness, it has an even softer stall than the conventional wind turbine profiles, and would increase the maximum airfoil performance by up to ~34%. This profile would also be usable for upwind turbines.It was found that there is a big potential for manipulating the high-lift technology to give various shapes and performances. The usability of these profiles therefore appears to be wider than previously assumed.
APA, Harvard, Vancouver, ISO, and other styles
2

Endo, Makoto. "Wind Turbine Airfoil Optimization by Particle Swarm Method." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1285774101.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Errasquin, Leonardo. "Airfoil Self-Noise Prediction Using Neural Networks for Wind Turbines." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/35193.

Full text
Abstract:
A neural network prediction method has been developed to compute self-noise of airfoils typically used in wind turbines. The neural networks were trained using experimental data corresponding to tests of several different airfoils over a range of flow conditions. The experimental data corresponds to the NACA 0012, Delft DU96, Sandia S831, S822 and S834, Fx63-137, SG6043 and SD-2030 airfoils. The chord of these airfoils range from 0.025 to 0.91 m and they were tested at Reynolds numbers of up to 3.8 million and angle of attack up to 15o depending on the airfoil. Using experimental data corresponding to different airfoils provides to the neural network the capacity to take into account the geometry of the airfoils in the predictions.geometry of the airfoils in the predictions. The input parameters to the network are the flow speed, chord length, effective angle of attack and parameters describing the geometrical shape of the airfoil. In addition, boundary layer displacement thickness was used for some models. The parameters used for taking into account the airfoilâ s geometry are based on a conformal mapping method or a polynomial approximation. The output of the neural network is given by sound pressure level in 1/3rd octave bands for nine frequencies ranging from 630 to 4000 Hz. The present work constitutes an application of neural networks to aeroacoustics. The main objective was to assess the potential of using neural networks to model airfoil noise. Therefore, this work is focused in the modeling of the problem, and no mathematical analyses about neural networks are intended. To this end, several models were investigated both in terms of the configuration and training approach. The performance of the networks was evaluated for a range of flow conditions. The neural network technique was first investigated for the NACA 0012 airfoil only. For this case, the geometry of the airfoil was not incorporated as input into the model. The neural network approach was then extended to account for airfoils of any geometry by including data from all airfoils in the training. Airfoil Self-Noise Prediction Using Neural Networks for Wind Turbines Leonardo Errasquin The results show that the neural networks are capable of predicting the airfoils self-noise reasonably well for most of the flow conditions. The broadband noise due to the turbulent boundary layer interacting with the trailing edge is estimated very well. The tonal vortex shedding noise due to laminar boundary layer-trailing edge interaction is not predicted as well, most likely due to the limited data available for this noise source. In summary, the research here demonstrated the potential of the neural network as a tool to predict noise from typical wind turbine airfoils.
Master of Science
APA, Harvard, Vancouver, ISO, and other styles
4

Ahmed, Irfan [Verfasser]. "Development of Form-Adaptive Airfoil Profiles for Wind Turbine Application / Irfan Ahmed." Kassel : Kassel University Press, 2017. http://d-nb.info/1143155335/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
6

Vesel, Richard Jr. "Optimization of a wind turbine rotor with variable airfoil shape via a genetic algorithm." Connect to resource, 2009. http://hdl.handle.net/1811/44504.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Vesel, Richard W. Jr. "Aero-Structural Optimization of a 5 MW Wind Turbine Rotor." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1331134966.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Lambie, Benjamin [Verfasser], Cameron [Akademischer Betreuer] Tropea, and Oliver [Akademischer Betreuer] Paschereit. "Aeroelastic Investigation of a Wind Turbine Airfoil with Self-Adaptive Camber / Benjamin Lambie. Betreuer: Cameron Tropea ; Oliver Paschereit." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2011. http://d-nb.info/1106256468/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zhao, Jiaming. "Experimental Study of Effects of Leading-Edge Structures on the Dynamic Stall of a Vertical Axis Wind Turbine Airfoil." Thesis, North Dakota State University, 2020. https://hdl.handle.net/10365/32053.

Full text
Abstract:
Vertical axis wind turbine, developed as one of the main methods to utilize the wind energy, has a promising future; however, the major issue to limit its performance is the uneven loading on the blade during operation. Flow control mechanisms have been employed in the aerodynamic field to improve the performance of airfoils. In this study, two types of leading-edge structures, including flexible leading-edge and leading-edge roughness, are experimentally investigated to analyze their effects on altering the aerodynamic characteristics of NACA 0018 airfoil under steady flow condition and dynamic pitching condition. Current experimental results indicate that 1) during the steady flow condition, both of leading-edge structures contribute to the delay of the static stall; 2) for the dynamic pitching process, the leading-edge structures either delayed the dynamic stall angle or increased the area of the coefficient of pressure loop as a function of angle of attack.
APA, Harvard, Vancouver, ISO, and other styles
10

Sagol, Ece. "Site Specific Design Optimization Of A Horizontal Axis Wind Turbine Based On Minimum Cost Of Energy." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611604/index.pdf.

Full text
Abstract:
This thesis introduces a design optimization methodology that is based on minimizing the Cost of Energy (COE) of a Horizontal Axis Wind Turbine (HAWT) that is to be operated at a specific wind site. In the design methodology for the calculation of the Cost of Energy, the Annual Energy Production (AEP) model to calculate the total energy generated by a unit wind turbine throughout a year and the total cost of that turbine are used. The AEP is calculated using the Blade Element Momentum (BEM) theory for wind turbine power and the Weibull distribution for the wind speed characteristics of selected wind sites. For the blade profile sections, either the S809 airfoil profile for all spanwise locations is used or NREL S-series airfoil families, which have different airfoil profiles for different spanwise sections, are used,. Lift and drag coefficients of these airfoils are obtained by performing computational fluid dynamics analyses. In sample design optimization studies, three different wind sites that have different wind speed characteristics are selected. Three scenarios are generated to present the effect of the airfoil shape as well as the turbine power. For each scenario, design optimizations of the reference wind turbines for the selected wind sites are performed the Cost of Energy and Annual Energy Production values are compared.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Wind Turbine Airfoil"

1

Pedersen, Troels Friis. Measurements of performance of a rotor with 8-m wind turbine blades from micon airfoil technology. Roskilde, Denmark: Riso National Laboratory, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

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.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

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.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Ramsay, R. Reuss. Effects of grit roughness and pitch oscillations on the S812 airfoil. Golden, CO: National Renewable Energy Laboratory, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

M, Gregorek G., and United States. National Aeronautics and Space Administration., eds. Wind tunnel evaluation of a truncated NACA 64-621 airfoil for wind turbine applications. [Washington, DC: National Aeronautics and Space Administration, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

China Science Publishing & Media Lt. Wind Turbine Airfoils and Blades. Edited by Jin Chen and Quan Wang. De Gruyter, 2018. http://dx.doi.org/10.1515/9783110344387.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

J, Kuniega R., Nyland Ted W, United States. Dept. of Energy. Wind/Ocean Technologies Division., and United States. National Aeronautics and Space Administration., eds. Comparison of pressure distributions on model and full-scale NACA 64-621 airfoils with ailerons for wind turbine application. Washington, D.C: U.S. Dept. of Energy, Conservation and Renewable Energy, Wind/Ocean Technology Division, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Wind Turbine Airfoil"

1

Driss, Zied, Tarek Chelbi, Ahmed Kaffel, and Mohamed Salah Abid. "Experimental Characterization of a NACA2415 Airfoil Wind Turbine." In Applied Condition Monitoring, 111–20. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14532-7_12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Oueslati, Mohamed Mehdi, Anouar Wajdi Dahmouni, and Sassi Ben Nasrallah. "Aerodynamic Performances of Pitching Wind Turbine Airfoil Using Unsteady Panel Method." In Exergy for A Better Environment and Improved Sustainability 1, 443–71. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-62572-0_31.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Karakalas, A., T. Machairas, A. Solomou, V. Riziotis, and D. Saravanos. "Development of SMA Actuated Morphing Airfoil for Wind Turbine Load Alleviation." In TMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems (MEMA 2015), 181–90. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119090427.ch18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Karakalas, A., T. Machairas, A. Solomou, V. Riziotis, and D. Saravanos. "Development of SMA Actuated Morphing Airfoil for Wind Turbine Load Alleviation." In Proceedings of the TMS Middle East — Mediterranean Materials Congress on Energy and Infrastructure Systems (MEMA 2015), 181–90. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48766-3_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Torres-Nieves, Sheilla, Víctor Maldonado, José Lebrón, Hyung-Suk Kang, Charles Meneveau, and Luciano Castillo. "Free-Stream Turbulence Effects on the Flow around an S809 Wind Turbine Airfoil." In Springer Proceedings in Physics, 275–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28968-2_59.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Manso Jaume, Ana, and Jochen Wild. "Aerodynamic Design and Optimization of a High-Lift Device for a Wind Turbine Airfoil." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 859–69. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27279-5_75.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Prabu, T., P. Viswanathan, V. Vijai Kaarthi, and J. Archana. "Aerodynamic Performance of a Micro Wind Turbine Blade with S-1223 Airfoil Ascribable the Bionic Bumps on Leading Edge." In Lecture Notes in Mechanical Engineering, 887–901. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0698-4_97.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Bak, Christian, Mac Gaunaa, and Ioannis Antoniou. "Performance of the Risø-B1 Airfoil Family for Wind Turbines." In Wind Energy, 231–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-33866-6_42.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ceyhan Yilmaz, Özlem. "Examples of Wind Tunnels for Testing Wind Turbine Airfoils." In Handbook of Wind Energy Aerodynamics, 1–28. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-05455-7_28-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lehmkuhl, O., J. Calafell, I. Rodríguez, and A. Oliva. "Large-Eddy Simulations of Wind Turbine Dedicated Airfoils at High Reynolds Numbers." In Research Topics in Wind Energy, 147–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54696-9_22.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Wind Turbine Airfoil"

1

Mayda, E. A., C. P. van Dam, and Earl P. N. Duque. "Bubble Induced Unsteadiness on Wind Turbine Airfoils." In ASME 2002 Wind Energy Symposium. ASMEDC, 2002. http://dx.doi.org/10.1115/wind2002-33.

Full text
Abstract:
The effect of laminar separation bubbles on the surface pressure distribution and aerodynamic force characteristics of two quite different airfoils is studied numerically. The low-Reynolds-number Eppler E387 airfoil is analyzed at a chord Reynolds number of 1.0×105 whereas the NREL S809 airfoil for horizontal-axis wind turbines is analyzed at 1.0×106. For all cases in the present study, bubble induced vortex shedding is observed. This flow phenomenon causes significant oscillations in the airfoil surface pressures and, hence, airfoil generated aerodynamic forces. The computed time-averaged pressures compare favorably with wind-tunnel measurements for both airfoils.
APA, Harvard, Vancouver, ISO, and other styles
2

Timmer, W. A., and R. P. J. O. M. van Rooij. "Summary of the Delft University Wind Turbine Dedicated Airfoils." In ASME 2003 Wind Energy Symposium. ASMEDC, 2003. http://dx.doi.org/10.1115/wind2003-352.

Full text
Abstract:
This paper gives an overview of the design and wind tunnel test results of the wind turbine dedicated airfoils developed by Delft University of Technology (DUT). The DU-airfoils range in maximum relative thickness from 15% to 40% chord. The first designs were made with XFOIL. Since 1995 RFOIL was used, a modified version of XFOIL, featuring an improved prediction around the maximum lift coefficient and capabilities of predicting the effect of rotation on airfoil characteristics. The measured effect of Gurney flaps, trailing edge wedges, vortex generators and trip wires on the airfoil characteristics of various DU-airfoils is presented. Furthermore, a relation between the thickness of the airfoil leading edge and the angle-of-attack for leading edge separation is given.
APA, Harvard, Vancouver, ISO, and other styles
3

Canal Vila, Marc, and Daniel Miguel Alfaro. "New airfoil family design for large wind turbine blades." In 33rd Wind Energy Symposium. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2015. http://dx.doi.org/10.2514/6.2015-0996.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gross, Andreas, and Hermann F. Fasel. "Flow Control for Wind Turbine Airfoil." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54128.

Full text
Abstract:
The flow over a NREL S822 wind turbine airfoil was simulated for a chord Reynolds number of 100,000 and an angle of attack of 5deg. These conditions approximately match the blade element conditions at 80% radius of a 2m diameter turbine operating at 300rpm. A simulation of the uncontrolled flow with steady approach flow conditions shows boundary layer separation on the suction side which is consistent with University of Illinois at Urbana-Champaign experimental data. Active flow control has the potential to locally (and on demand) reduce the unsteady loads on individual turbine blades during non-nominal operation, thereby increasing turbine life. In addition, flow control may help lower the cut-in wind speed. Unsteady flow control for reducing the suction side separation using pulsed vortex generator jets, flip-flop jets, and plasma actuators were evaluated. It was found that very low actuation amplitudes were already sufficient for eliminating the suction side separation. The high effectiveness and efficiency is traced back to hydrodynamic instabilities that lead to a downstream growth of the forced disturbances. Too high actuator amplitudes resulted in early disturbance saturation which made the control inefficient.
APA, Harvard, Vancouver, ISO, and other styles
5

Nikoueeyan, Pourya, John A. Strike, Andrew S. Magstadt, Michael Hind, and Jonathan W. Naughton. "Aerodynamic Response of a Wind Turbine Airfoil to Gurney Flap Deployment." In 33rd Wind Energy Symposium. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2015. http://dx.doi.org/10.2514/6.2015-0995.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Oueslati, Mohamed Mehdi, Anouar Wajdi Dahmouni, and Sassi Ben Nasrallah. "Numerical study of pitching wind turbine airfoil." In 2014 International Conference on Composite Materials & Renewable Energy Applications (ICCMREA). IEEE, 2014. http://dx.doi.org/10.1109/iccmrea.2014.6843800.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Gross, Andreas, Hermann Fasel, Tillmann Friederich, and Markus Kloker. "Numerical Investigation of S822 Wind Turbine Airfoil." In 40th Fluid Dynamics Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-4478.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

De Tian, Ningbo Wang, Hang Lei, Yujie Jiang, and Ying Deng. "Airfoil dynamic stall research of wind turbine." In 2nd IET Renewable Power Generation Conference (RPG 2013). Institution of Engineering and Technology, 2013. http://dx.doi.org/10.1049/cp.2013.1833.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Graham, Henry Z., Chad Panther, Meagan Hubbell, Jay P. Wilhelm, Gerald M. Angle, and James E. Smith. "Airfoil Selection for a Straight Bladed Circulation Controlled Vertical Axis Wind Turbine." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90343.

Full text
Abstract:
A vertical axis wind turbine (VAWT) prototype is being developed at West Virginia University that utilizes circulation control to enhance its performance. An airfoil was chosen for this turbine based on its performance potential, and ability to incorporate circulation control. The selection process for the airfoil involved the consideration of camber, blade thickness, and trailing edge radius and the corresponding impact on the lift and drag coefficients. The airfoil showing the highest lift/drag ratio augmentation, compared to the corresponding unmodified airfoil was determined to be the most likely shape for use on the circulation control augmented vertical axis wind turbine. The airfoils selected for this initial investigation were the NACA0018, NACA2418, 18% thick elliptical, NACA0021, and the SNLA2150. The airfoils were compared using the computational fluid dynamics program FLUENT v.6.3.26 with a blowing coefficient of 1% [1]. The size of the trailing edge radius and the slot heights were varied based on past experimental data [2]. The three trailing edge radii and two blowing slot heights were investigated. The thickness of the airfoil impacts the circulation control performance [3], thus it was studied by scaling the NACA0018 to a 21% thickness and compared to an SNLA2150 airfoil. The airfoils’ lift and drag coefficients were compared to determine the most improved lift-drag ratio (L/D). When comparing the increases of the L/D due to circulation control, the NACA0018 and 2418 airfoils were found to outperform the elliptical airfoil; the NACA0018 performed slightly better than the 2418 when comparing the same ratio L/D. The results showed that the 21% thick airfoils produced a decreased L/D profile compared to the NACA0018 airfoils. Therefore, the NACA0018 was found to be the optimal airfoil based from this initial investigation due to an increased L/D compared to the other airfoils tested.
APA, Harvard, Vancouver, ISO, and other styles
10

Williams, Kenneth A., Christina N. Yarborough, and James E. Smith. "Structural Design Considerations of a Circulation Controlled Vertical Axis Wind Turbine." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90078.

Full text
Abstract:
In the latter half of the twentieth century extensive research had been performed to improve the efficiency and operational life of Vertical axis wind turbines (VAWTs) in order to make them competitive with the more common horizontal axis wind turbines (HAWTs). Due to the completely random wind conditions and a continuously changing angle of attack of the rotating airfoil, fatigue of the system components was a major contributor to the short operational life of these traditional VAWTs. The fluctuating aerodynamic forces generated by the airfoil during rotation subject the support shaft to a substantial amount of torque ripple. In addition to the varying torque produced by the turbine, the centripetal forces generated by the airfoil’s rotation proved to be extremely large and create problems with deflection and fatigue in the airfoil’s internal support structure and especially at the attachment point of the airfoil to the support arm. One method for improving the efficiency of an aerodynamic system is to reduce the weight of the system. However, because of the forces generated during turbine operation, this proved to be a nontrivial task. West Virginia University’s (WVU) Center for Industrial Research Applications (CIRA) is exploring the implementation of circulation control on a vertical axis wind turbine to increase the lift to drag ratio of the turbine’s airfoils in order to produce a greater turning force and improve the efficiency of the system. While the common structural challenges of vertical axis wind turbines still apply, those implementing circulation control introduce additional design hurdles which must be overcome. These additional design problems concern mainly with the airfoil construction and support shaft in that they must be capable of accommodating the circulation control system components. This paper introduces the geometrical design constraints imposed on a vertical axis wind turbine through the operational requirements and serviceability of the circulation control system in addition to the traditional aerodynamic and centripetal forces generated and how they are resolved onto the individual turbine components.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Wind Turbine Airfoil"

1

Miley, S. J. Addendum to a catalog of low Reynolds number airfoil data for wind turbine applications. Office of Scientific and Technical Information (OSTI), February 1985. http://dx.doi.org/10.2172/5801393.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wolfe, W. P., and S. S. Ochs. Predicting aerodynamic characteristic of typical wind turbine airfoils using CFD. Office of Scientific and Technical Information (OSTI), September 1997. http://dx.doi.org/10.2172/534484.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Devenport, W., R. A. Burdisso, H. Camargo, E. Crede, M. Remillieux, M. Rasnick, and P. Van Seeters. Aeroacoustic Testing of Wind Turbine Airfoils: February 20, 2004 - February 19, 2008. Office of Scientific and Technical Information (OSTI), May 2010. http://dx.doi.org/10.2172/981272.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Mitchell, M., and A. Murphy. Fatigue behavior of vertical axis wind turbine airfoils with two weld configurations. Office of Scientific and Technical Information (OSTI), October 1989. http://dx.doi.org/10.2172/5414835.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Blaylock, Myra L., David Charles Maniaci, and Brian R. Resor. Numerical Simulations of Subscale Wind Turbine Rotor Inboard Airfoils at Low Reynolds Number. Office of Scientific and Technical Information (OSTI), April 2015. http://dx.doi.org/10.2172/1178361.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Gregorek, G. M., M. J. Hoffmann, R. R. Ramsay, and J. M. Janiszewska. Study of Pitch Oscillation and Roughness on Airfoils Used for Horizontal Axis Wind Turbines. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/205204.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Selig, M. S., and B. D. McGranahan. Wind Tunnel Aerodynamic Tests of Six Airfoils for Use on Small Wind Turbines; Period of Performance: October 31, 2002--January 31, 2003. Office of Scientific and Technical Information (OSTI), October 2004. http://dx.doi.org/10.2172/15007930.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Oerlemans, S. Wind Tunnel Aeroacoustic Tests of Six Airfoils for Use on Small Wind Turbines; Period of Performance: August 23, 2002 through March 31, 2004. Office of Scientific and Technical Information (OSTI), August 2004. http://dx.doi.org/10.2172/15007773.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Somers, D. M., and M. D. Maughmer. Theoretical Aerodynamic Analyses of Six Airfoils for Use on Small Wind Turbines: July 11, 2002--October 31, 2002. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/15003956.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Wind Turbine Airfoil' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography