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Journal articles on the topic 'Blade angle optimization'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Tanasheva, Nazgul, Ainura Dyusembaeva, Nurgul Shuyushbayeva, et al. "Optimization of Magnus Wind Turbine Blades to Increase Operational Efficiency." CFD Letters 17, no. 6 (2024): 205–19. https://doi.org/10.37934/cfdl.17.6.205219.

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The problem of vortex disruption from the cylindrical blades of Magnus wind turbines is an urgent topic, which subsequently reduces the efficiency of the installation. Also, these cylindrical blades have a disadvantage in the form of low lift and high drag, as a result of which low operating efficiency is observed. Thus, the purpose of this work is a numerical study of the addition of a fixed blade to the cylindrical blades of a two-bladed wind turbine. Numerical studies were carried out for various angles of inclination of fixed blades from 0° to 60° using the Realizable k-ε turbulence model.

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2

Andrade, Silvia C. de P., Déborah A. T. D. do Rio Vaz, and Jerson R. P. Vaz. "A Simplified Optimization Model for Hydrokinetic Blades with Diffuser and Swept Rotor." Sustainability 16, no. 1 (2023): 33. http://dx.doi.org/10.3390/su16010033.

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The use of a diffuser in hydrokinetic turbines can improve the power coefficient. However, the risk of cavitation in the rotor blades increases. Studies suggest that backward-curved blades can reduce the axial load on the rotor and therefore prevent cavitation. Therefore, this work develops an optimization procedure applied to backward-curved blades in hydrokinetic turbines with diffusers based on the Blade Element Momentum Theory. The main contribution is to consider both the sweep effect and the presence of a diffuser in the optimization in an innovative way. We use a radial transformation f

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3

Zhang, Hui Min, and Hui Liang Liao. "Structure Optimization of Open Turbine Type Agitator." Advanced Materials Research 1082 (December 2014): 284–87. http://dx.doi.org/10.4028/www.scientific.net/amr.1082.284.

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Regarding open turbine type agitator, CFD method was used to simulate the mixing flow field with different number of blades, different blade angles and different ratio of blade lengths and diameters. In addition, according to the mixing effect, the parameters of agitator structure are optimized. Numerical simulations are verified by PIV experiments. The Multiple reference frame model conforms to the reality. Agitator structure is optimized when the ratio of blade length and diameter is 0.74, the blade angle is 45 °,blade number is 6, leading to the best the mixing effect with least stirring de

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4

Tshepo, S. Sithole, R. Veeredhi Vasudeva, and Thembalani Sithebe Dr. "Small Wind Turbine Blade Optimization using Blade Elementary Method Theory (BEMT)." International Journal of Innovative Science and Research Technology 7, no. 12 (2022): 16–21. https://doi.org/10.5281/zenodo.7444983.

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Theoretical algorithms, such as computational fluid dynamics (CFD), blade elementary method (BEM) theory, and the vortex wake system (VWS) have been implemented in the design of aerodynamic wind turbines. On these theoretical methods, the (BEM) theory proved to be the best method in optimising HAWT blades and is thus the most commonly used approach in modelling and constructing small wind turbine blades. This paper will primarily focused on designing and optimizing the type of aerofoil required for improving the pitch angle of the rotor blades, and for determining the number of blades necessar

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5

Zhao, Xintong, Jianhui Guan, Tianyu Wang, Xinyu Liu, Qingao Xu, and Jie Zhou. "Optimization of Impeller Structure Parameters of a Centrifugal Fan in a Powered Air-Purifying Respirator Power System." Processes 12, no. 2 (2024): 353. http://dx.doi.org/10.3390/pr12020353.

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As the core power element of a centrifugal fan, the impeller’s structural parameters are important factors affecting the aerodynamic performance of the fan. Therefore, to improve the aerodynamic performance of centrifugal fans, in this study, we take the Powered Air-Purifying Respirator (PAPR) power system as the object of research and use a combination of computational fluid dynamics (CFD) and experimental validation to investigate the effects of the number of blades, blade inlet angle, blade outlet angle, blade height, and blade thickness on the aerodynamic performance of the fan. A five-fac

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Fazylova, Alina, Michail Malamatoudis, and Panagiotis Kogias. "Optimization of the blade profile of a vertical axis wind turbine based on aerodynamic analysis." E3S Web of Conferences 404 (2023): 02002. http://dx.doi.org/10.1051/e3sconf/202340402002.

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This paper explores the influence of the angle of attack on the aerodynamic characteristics of the blade profile. The paper presents calculations, modeling and graphical representation of the blade shape during rotation around the axis. Using the given parameters, such as the length of the blade, the radius of the upper and lower boundaries, as well as the angle of inclination of the blade, the calculation of the coordinates of the points of the blade profile for various angles of rotation is given. The cross-sectional area, volume and mass of the blade were also calculated. Appropriate calcul

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7

Ren, Jinbo, Chongcheng Chen, Difa Bao, Xinhui Wu, and Shuhe Zheng. "Simulation Analysis and Optimization Design of Paddy Field Mud Spreader Blades for Uniform Dispersion." Agriculture 14, no. 3 (2024): 344. http://dx.doi.org/10.3390/agriculture14030344.

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To improve the distribution of mud particles collected in the tray during the operation of paddy field mud spreader blades, the optimal combination of parameters for the blades that results in the best uniformity of mud dispersion needs to be identified. In this study, a thorough force analysis was conducted on the spreading process, and computational equations were formulated to describe the motion of mud particles. By utilizing the discrete element simulation technique, a simulation model was developed to accurately represent the intricate interaction between the blades and mud particles. Th

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8

Wang, Shi Ming, and Ka Tian. "Flow Field Numerical Simulation Analysis of Five Wing Horizontal Wave Turbine Power Plant with Different Blade Angles." Applied Mechanics and Materials 477-478 (December 2013): 221–25. http://dx.doi.org/10.4028/www.scientific.net/amm.477-478.221.

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Used FLUENT software to simulate the flow distribution of a certain horizontal turbine with its blade angle changed from 25 ° to-35 °.The simulation results show the flow field changes with a period which was a fifth to the turbine rotational period. When the blade heads deflected laterally, the high flow velocity appeared near rear back turbine blades, or it appeared near the facing flow blades which were in the front lower part of the turbine. Besides, for blade angle deflected inside models, a stable annular velocity vector vortex gradually emerged around turbine as blade angle increased. T

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9

Amiruddin, Hilmi, Wan Mohd Faizal Wan Mahmood, Shahrir Abdullah, Mohd Radzi Abu Mansor, Rizalman Mamat, and Azri Alias. "Application of Taguchi method in optimization of design parameter for turbocharger vaned diffuser." Industrial Lubrication and Tribology 69, no. 3 (2017): 409–13. http://dx.doi.org/10.1108/ilt-09-2016-0224.

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Purpose The purpose of this study is to determine the best vaned diffuser design that can generate higher pressure output at a predetermined speed. Design/methodology/approach Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on output pressure is studied using the analysis of variance (

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10

Zhao, Zhi Qiang, Zhi Gang Ma, Yue Tao Liu, Xiao Long Wu, and Hun Guo. "Optimization and Affections of Cathode Feed Angle on Machining Accuracy Error Distribution of Aero-Engine Blade in Electrochemical Machining." Key Engineering Materials 764 (February 2018): 225–34. http://dx.doi.org/10.4028/www.scientific.net/kem.764.225.

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Utilizing all-direction electrochemical machining (ECM) for super-thin twist aero-engine, feed angle of tool cathode and blade fixture angle are investigated and optimized in this study. The most optimal combination of the two angles (oblique feed angle of tool cathode and fixture angle of blade stock) is selected from all 65341 angle combinations. Moreover, the affections of the optimized angle combination on machining error distribution between blade shape and plate are concentrated. The analysis and experimental results demonstrate that the optimized angle combination can satisfy the machin

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11

Zheng, Zhi-Ying, Quan-Zhong Liu, Yong-Kang Deng, and Biao Li. "Multi-objective optimization design for the blade angles of hydraulic torque converter with adjustable pump." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 13 (2020): 2523–36. http://dx.doi.org/10.1177/0954406220909853.

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To improve the efficiency of a hydraulic torque converter with adjustable pump at low load and thus increase the operation scope of high efficiency, multi-objective optimization design is carried out for the blade angles by incorporating three-dimensional steady computational fluid dynamics numerical simulation, design of experiments, Kriging surrogate model and multi-objective genetic algorithm. The results show that the angle of blade trailing edge in first-stage stator is the main influencing factor of the efficiency of hydraulic torque converter with adjustable pump. All the peak efficienc

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12

Chaudhary, Manoj Kumar, and Anindita Roy. "Design & optimization of a small wind turbine blade for operation at low wind speed." World Journal of Engineering 12, no. 1 (2015): 83–94. http://dx.doi.org/10.1260/1708-5284.12.1.83.

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A small wind turbine blade was designed and optimized in this research paper. The blade plays an important role, because it is the most important part of the energy absorption system. Consequently, the blade has to be designed carefully to enable to absorb energy with its greatest efficiency. The main objective of this paper is to optimized blade number and selection of tip speed ratio corresponding to the solidity. The power performance of small horizontal axis wind turbines was simulated in detail using blade element momentum methods (BEM). In this paper for wind blade design various factors

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13

Rubinstein, R. "STAEBL/General Composites With Hygrothermal Effects (STAEBL/GENCOM)." Journal of Engineering for Gas Turbines and Power 110, no. 2 (1988): 301–5. http://dx.doi.org/10.1115/1.3240121.

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A computer code has been developed to perform structural optimization of turbine blades made from angle ply fiber composite laminates. Design variables available for optimization include geometric parameters such as blade thickness distribution and root chord, and composite material parameters such as ply angles and numbers of plies of each constituent material. Design constraints include resonance margins, forced response margins, maximum stress, and maximum ply combined stress. A general description of this code is given. Design optimization studies for typical blades are presented.

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14

Liu, Houlin, Linglin Jiang, Yong Wang, Marko Hočevar, Jun Yan, and Jie Chen. "Optimization and CFD performance analysis of an automotive coolant pump." Advances in Mechanical Engineering 14, no. 2 (2022): 168781322210816. http://dx.doi.org/10.1177/16878132221081602.

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The blade outlet angle, wrap angle, and number of blades of the impeller are optimized to increase the pumping efficiency of the automotive coolant pump while keeping the size constant. Three new variants were designed and the optimal one was selected for the comparison with the original scheme. The experiment was conducted to test the hydraulic performance of the optimized impeller. The results show that the energy characteristics of the optimized impeller are in reasonable agreement with the experimental data. The energy characteristics and internal flow details of original scheme and optimi

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15

Quan, Hui, Ying Guo, Rennian Li, Qingmiao Su, and Yi Chai. "Optimization design and experimental study of vortex pump based on orthogonal test." Science Progress 103, no. 1 (2019): 003685041988188. http://dx.doi.org/10.1177/0036850419881883.

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To study the effects of the performance of different types of impeller on the vortex pump, orthogonal test design, which is carried out by combining experimental test and numerical calculation, is adopted to optimize the type of design structure for the impeller in vortex pump. To find out the folding blade angle, the position of the folding point in the whole blade, and whether to wedge folding blade, an orthogonal test scheme with three factors and two levels is designed. A numerical simulation test is conducted for each scheme by analyzing the performance curve of orthogonal test plan to fi

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16

Khamzah, Muhammad Izwan, and Rachmat Firdaus. "Optimizing Low-Speed Wind Turbines: The Impact of Blade Angle and Profile." Innovative Construction and Petrochemical Technologies 1, no. 1 (2024): 15–22. https://doi.org/10.71285/icpt.v1i1.5.

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This study investigates the optimization of horizontal axis wind turbines for low-speed wind conditions in Indonesia, focusing on blade configuration. Through experimental methods, the research evaluates how variations in the number of blades, blade profiles, and particularly the alpha angle of the NACA 0021 rotor blade affect turbine efficiency. Findings reveal that adjusting the blade angle significantly enhances the power coefficient, offering a potential pathway to increase the efficiency of wind turbines under low-speed conditions. This advancement could contribute to more sustainable and

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17

Sarjito, Agus Dwi Anggono, Wijianto, Fauzan Anas Wirawan, Sidik Kurniawan, and Bagus Dwi Nugroho. "Design of Archimedes Screw Turbine by Multi-step Selections on Parameter Pitch Distance, Blade Number, and Blade Angle." International Journal of Mathematical, Engineering and Management Sciences 10, no. 2 (2025): 554–66. https://doi.org/10.33889/ijmems.2025.10.2.028.

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One of the water turbines called an Archimedes screw turbine (ASTs) is appropriate to run in a low head of just less than 5 m and works at a wide range of discharge operations. The performance of the turbine is influenced by some aspect that requires optimization. The research aims to characterize turbine performance by selecting the pitch distance of the blade, the number of blades, and the angle of the blade. Initiated by developing Archimedes screw turbine of 500 mm length and blade diameter of 100 mm, using screw blades at different distances of 50, 70, 100, 200, and 300 mm. Then continue

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18

Bellary, S. A. I., Afzal Hussain, Abdus Samad, and R. A. Kanai. "Performance Optimization of Centrifugal Pump for Crude Oil Delivery." Journal of Engineering Research [TJER] 15, no. 1 (2018): 88. http://dx.doi.org/10.24200/tjer.vol15iss1pp88-101.

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Crude oil transport is an essential task in oil and gas industries, where centrifugal pumps are extensively used. The design of a centrifugal pump involves a number of independent parameters which affect the pump performance. Altering some of the parameters within a realistic range improves pump performance and saves a significant amount of energy. The present research investigated the pump characteristics by modifying the number of blades and the exit blade-angles. Reynolds-Averaged Navier-Stokes equations with standard k-ε two-equation turbulence closure were used for steady and incompressib

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19

Wu, Kuo-Tsai, Kuo-Hao Lo, Ruey-Chy Kao, and Sheng-Jye Hwang. "Numerical and Experimental Investigation of the Effect of Design Parameters on Savonius-Type Hydrokinetic Turbine Performance." Energies 15, no. 5 (2022): 1856. http://dx.doi.org/10.3390/en15051856.

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To meet the increased demand of hydroelectric power generation, a novel drag-based Savonius turbine with the characteristics of a simpler fabrication process and good starting characteristics is designed, fabricated, and analyzed. The newly designed turbine is suitable to be installed in rivers, irrigation channels, ocean currents, etc., for small-scale hydroelectric power generation. In the present study, experiments are carried out to investigate the influence of the design parameters of this turbine on its power performance in order to improve its efficiency, including blade arc angles (180

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20

Zheng, Jia Hong, and Hao Ran Ma. "Optimization Design of Wind Turbine Blades Based on BLADED." Advanced Materials Research 538-541 (June 2012): 2700–2704. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.2700.

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The optimization of wind turbine blades can increase the generator power and annual output of electricity. Illustrated by the case of 2MW wind turbine, optimizing the blade chord and twist angle by POS algorithm. Modeling by BLADED, analysis the change of lift and drag coefficients, the power coefficient, maximum power of wind turbine, minimum power of wind turbine, wind turbine generating capacity before and after optimization. The results show: the aerodynamic efficiency of optimized blade increased by 4.833 than that before optimization. In the wind speed of 12 m/s (that is lower and normal

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21

Dai, Tong, Wei Sun, Danzhu Zhang, and Petru A. Simionescu. "Design, Testing, and Optimization of a Filling-Type Silage Crushing, Shredding, and Baling Integrated Machine." Machines 13, no. 3 (2025): 228. https://doi.org/10.3390/machines13030228.

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To address the limitations of large silage machines in hilly and small-scale farming regions and the inefficiencies of existing small-scale crushing and baling machines, in this study, we developed an integrated silage crushing, shredding, and baling machine. Using discrete element software (EDEM 2022.3), the baling process of shredded straw was simulated, achieving a baled grass density of 140.067 kg/m3, meeting practical requirements. A three-factor, three-level experiment was conducted to evaluate the effects of the hammer blade quantity, blade length, and hammer angle on machine productivi

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22

Song, Ke, Huiting Huan, and Yuchi Kang. "Aerodynamic Performance and Wake Characteristics Analysis of Archimedes Spiral Wind Turbine Rotors with Different Blade Angle." Energies 16, no. 1 (2022): 385. http://dx.doi.org/10.3390/en16010385.

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Continuous improvement of wind turbines represent an effective way of achieving green energy and reducing dependence on fossil fuel. Conventional lift-type horizontal axis wind turbines, which are widely used, are designed to run under high wind speed to obtain a high efficiency. Aiming to use the low-speed wind in urban areas, a novel turbine, which is called the Archimedes Spiral Wind Turbine (abbreviated as ASWT), was recently proposed for low-speed wind applications. In the current work, a numerical simulation on the five ASWT rotors with different blade angles was carried out, which were

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23

Topu, Ali Akbor, and Raju Ahammad. "Numerical Analysis of Various Horizontal Axis Wind Turbine Blades and Optimization for Low Wind Velocity." SciEn Conference Series: Engineering 1 (May 7, 2025): 92–97. https://doi.org/10.38032/scse.2025.1.17.

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Among different renewable energy sources, wind energy is a promising source for harvesting energy, but the main obstacle here is that the wind velocity is not high enough everywhere. Small-scale wind turbine blade output is very small as the power output of wind power is proportional to the square of air velocity. Therefore, research is going on to develop new blades efficient enough to produce electricity at low wind velocity by optimizing blade shape. In this study, two airfoil models NACA 63-415 and NACA 63-412 were analyzed numerically using ANSYS Fluent software. Different aerodynamic pro

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24

Ding, Yanyan, Jun Wang, Boyan Jiang, et al. "Multi-Objective Optimization for the Radial Bending and Twisting Law of Axial Fan Blades." Processes 10, no. 4 (2022): 753. http://dx.doi.org/10.3390/pr10040753.

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The performance of low-pressure axial flow fans is directly affected by the three-dimensional bending and twisting of the blades. A new blade design method is adopted in this work, where the radial distribution of blade angle and blade bending angle is composed of standard-form rational quadratic Bézier curves. Dendrite Net is then trained to predict the pneumatic performance of the fan. A non dominated sorting genetic algorithm is employed to solve the global optimization problem of the total pressure coefficient and efficiency. The simulation results show that the optimal blade load distribu

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25

Ma, Shuai, Jun Hu, Xuegao Wang, and Jiajia Ji. "Effect of Non-Uniformity of Rotor Stagger Angle on the Stability of a Low-Speed Axial Compressor." Energies 15, no. 8 (2022): 2714. http://dx.doi.org/10.3390/en15082714.

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It is well known that variations in stagger angle between rotor blades affect compressor performance. In this paper, the stagger angle of blade No. 8 is increased or decreased by six degrees for non-uniformity, and the influence of rotor non-uniformity caused by the change in only one blade stagger angle on the performance and stability of the compressor is investigated. The experimental results show that whether the local rotor stagger angle increases or decreases, the compressor stability will deteriorate. If the stagger angle of blade No. 8 is reduced by six degrees, the flow coefficient at

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26

Akbari, Vahid, Mohammad Naghashzadegan, Ramin Kouhikamali, and Wahiba Yaïci. "Evaluation of Regional Elevation and Blade Density Effects on the Efficiency of a 1-kW Wind Turbine for Operation in Low-Wind Counties in Iran." Wind 3, no. 3 (2023): 320–42. http://dx.doi.org/10.3390/wind3030019.

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This research investigates the effect of blade density and elevation above sea level on the startup time (Ts) and power coefficient (Cp) of a 1-kW two-bladed wind turbine. The study uses three Iranian hardwoods as the blade material and four counties of Iran with low wind speeds and different elevations as the case studies. The BW-3 airfoil is considered as the blade profile. A multi-objective optimization process with the aid of the differential evolution (DE) algorithm is utilized to specify the chord length and twist angle. The findings demonstrate that, while the maximum Cp of the optimal

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27

Zhuang, Haifei, Mingming Liu, and Tao Guo. "Modification and Optimization of Cylindrical Blade of Dredge Pump Based on CFD." Journal of Physics: Conference Series 2329, no. 1 (2022): 012004. http://dx.doi.org/10.1088/1742-6596/2329/1/012004.

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Abstract The 3500 m3/h series cutter suction dredger pump adopts cylindrical blade impeller with low efficiency and serious wear of impeller channel; The twisted blade is optimized by conformal transformation method, and the blade wrap angle is increased by 75°; The efficiency of dredge pump with twisted blades is increased by 9% compared with cylindrical blades when the flow is 8000-12000 m3/h; The relative velocity nephogram shows that the twisted blade eliminates the vortex in the impeller channel and improves the flow field; Through the erosion simulation analysis of solid-liquid two-phase

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28

Ruiz-Hussmann, Karla, Pierre-Luc Delafin, Cyrille Bonamy, Yves Delannoy, Dominique Thévenin, and Stefan Hoerner. "Objective Functions for the Blade Shape Optimisation of a Cross-Flow Tidal Turbine under Constraints." International Marine Energy Journal 8, no. 1 (2025): 47–55. https://doi.org/10.36688/imej.8.47-55.

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Hydro-kinetic cross-flow tidal turbines (CFTT) are omni-directional and offer higher area-based power density compared to horizontal-axis tidal turbines, making them very attractive for tidal energy exploitation. However, the rotating motion around the vertical axis results in continuously varying angles of attack, causing alternating loads, which may lead to fatigue failure and structural damage. The OPTIDE Project addresses these challenges by implementing intracycle blade pitching to individually control the angle of attack, increasing the power coefficient CP and reducing structural loads.

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29

Szczerba, Zygmunt, Piotr Szczerba, Kamil Szczerba, Marek Szumski, and Krzysztof Pytel. "Wind Tunnel Experimental Study on the Efficiency of Vertical-Axis Wind Turbines via Analysis of Blade Pitch Angle Influence." Energies 16, no. 13 (2023): 4903. http://dx.doi.org/10.3390/en16134903.

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This paper presents results of experimental investigations and numerical simulations of a vertical-axis H-type wind turbine, considering the influence of propeller blade pitch angle on turbine characteristics. An innovative airfoil profile based on a modified symmetric NACA0015 airfoil profile was used as the designed blade profile, which was tested in a wind tunnel over a range of Reynolds numbers from 50,000 to 300,000. The phenomenon of angle-of-attack variation and the resulting forces acting on the blades, particularly in the horizontal configuration and vertical axis of rotation, were di

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Vaidhye, Rahul. "Blade Design and Performance Analysis of Wind Turbine." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (2022): 2220–27. http://dx.doi.org/10.22214/ijraset.2022.44217.

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Abstract: This paper reviews the design optimization of wind turbine blades through investigating the design methods and analyzing the performance of the blades. The current research work in this area include wind turbine blade geometric design and optimization, aerodynamics analysis, wind turbine blade structural design and dynamics analysis. Blade geometric design addresses the design parameters, including airfoils and their aerodynamic coefficients, attack angles, design tip speed ratio, design and/or rated wind speed, rotor diameter, blade aerodynamic shape with chord length and twist dist

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Jha, Devashish, and Saket Saurabh. "NACA2412 airfoil based method for design and aerodynamic analysis of small HAWT using modified BEM approach." Science and Technology for Energy Transition 78 (2023): 2. http://dx.doi.org/10.2516/stet/2022023.

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Efficient utilization of wind energy depends on careful selection and suitable design of Wind Turbine (WT) blades. Small scale Wind Turbines (SWT) normally operate in the low range of Angle of Attack (AoA). This makes the task even more difficult for designing and optimization of WT blades. This article deals with an airfoil based computational approach to design the blade for a standalone small scale Horizontal Axis Wind Turbine (HAWT). A procedure has been proposed to find the important parameters and analyze the performance characteristics for a three bladed HAWT operating under the wake ro

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Wicaksono, Hangga, Kris Witono, Akhmad Faizin, and Budi Eko Prasetyo. "Numerical Study of Chord Length and Twist angle Effect towards NACA 4415-FX60 Airfoil Combination in Horizontal Wind Turbines Application." JOURNAL OF SCIENCE AND APPLIED ENGINEERING 7, no. 1 (2024): 7–17. http://dx.doi.org/10.31328/jsae.v7i1.5868.

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The selection of the appropriate blade shape requires optimization in order to be applied to the relatively low wind conditions in Indonesia. This study proposed a new approach of wind turbine blades design by utilizing the combination of NACA 4415 and FX 60. The effect of twist angle and the chord length carried out in this study to better understanding the blades characteristics. The 6 DoF analysis can be used to determines the theoretical mechanical power of the wind turbine blades. The blade twist geometry analyzed in this study is 15, 20, and 25 degree. From the simulation results, the hi

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Sithole, Tshepo, Lukas W. Snyman, Vasudeva R. Veeredhi, and Thembelani Sithebe. "Optimizing Small Wind Turbine Blades: A BEMT Approach Optimizing Small Wind Turbine Blades: A BEMT Approach." International Journal of Energetica 8, no. 2 (2023): 36. https://doi.org/10.47238/ijeca.v8i2.227.

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This paper explores the optimization of small wind turbine blades, focusing on the design and utilization of theoretical algorithms such as computational fluid dynamics (CFD), blade elementary method (BEM) theory, and the vortex wake system (VWS). Among these methods, BEM theory has proven to be the most effective in optimizing horizontal-axis wind turbine (HAWT) blades and is commonly employed in modeling and constructing small wind turbine blades. The study centers on designing and optimizing aerofoils to enhance rotor blade pitch angles and determining the optimal number of blades for maxim

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Asim, Muhammad, Shoaib Muhammad, Muhammad Amjad, et al. "Design and Parametric Optimization of the High-Speed Pico Waterwheel for Rural Electrification of Pakistan." Sustainability 14, no. 11 (2022): 6930. http://dx.doi.org/10.3390/su14116930.

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This research study presents an approach for analysis of pico hydro waterwheels by both experimental and numerical methods. The purpose of this research is to harness the energy efficiently from flowing water of irrigation channels and other shallow water sources in rural areas because the electrification of rural areas through connection to grid electricity is very costly. The novelty of this research work lies in testing of the waterwheel as a high-speed device, which is not usually explored. The review of existing literature reveals that pico waterwheels have been extensively studied but wi

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Peng, Guangjie, Yuan Lou, Dehui Yu, et al. "Investigation of Energy Loss Mechanism and Vortical Structures Characteristics of Marine Sediment Pump Based on the Response Surface Optimization Method." Journal of Marine Science and Engineering 11, no. 12 (2023): 2233. http://dx.doi.org/10.3390/jmse11122233.

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Marine sediment pumps are extensively applied in marine engineering fields with complex media and harsh flow conditions. Therefore, this study conducts a multi-factor optimization design for a marine sediment pump. The response surface optimization method is utilized to improve the efficiency by optimizing the number of impeller blades, the blade inlet angle, the blade outlet angle, and the blade wrap angle. Next, a response surface regression model is created, and the influence of geometric parameters on the efficiency is determined. Meanwhile, the energy loss mechanism and vortical structure

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Akbari, Vahid, Mohammad Naghashzadegan, Ramin Kouhikamali, Farhad Afsharpanah, and Wahiba Yaïci. "Multi-Objective Optimization of a Small Horizontal-Axis Wind Turbine Blade for Generating the Maximum Startup Torque at Low Wind Speeds." Machines 10, no. 9 (2022): 785. http://dx.doi.org/10.3390/machines10090785.

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Generating a high startup torque is a critical factor for the application of small wind turbines in regions with low wind speed. In the present study, the blades of a small wind turbine were designed and optimized to maximize the output power and startup torque. For this purpose, the chord length and the twist angle were considered as design variables, and a multi-objective optimization study was used to assess the optimal blade geometry. The blade element momentum (BEM) technique was used to calculate the design goals and the genetic algorithm was utilized to perform the optimization. The BEM

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Pei, Hansheng, and Xuemin Wang. "Optimization of cavitation characteristics of axial flow submersible pump." Journal of Physics: Conference Series 2365, no. 1 (2022): 012006. http://dx.doi.org/10.1088/1742-6596/2365/1/012006.

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Abstract In view of the problem that the actual performance of axial-flow pump is less than the theoretical design value, Taking the axial-flow pump with a designed flow rate of 350L/s as the research object. The theoretical relationship between impeller head and outlet installation angle was studied. The influence of different blade angles on the external characteristics of the impeller was analyzed. Through the analysis of different external characteristics corresponding to different blade outlet installation angles, the influence of blade installation angles on shaft oil pump performance is

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Wijaya Pratama, Agung, Fatahul Arifin, and Tresna Dewi. "Cross-flow Turbine Design with Taguchi Method Approach." International Journal of Research in Vocational Studies (IJRVOCAS) 3, no. 3 (2023): 07–15. http://dx.doi.org/10.53893/ijrvocas.v3i3.222.

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The current energy demand is very large, while the use of energy, which mostly uses petroleum and coal, is not matched by the availability of energy sources. For this reason, it is necessary to conduct research on alternative energy in order to provide energy security in the future. One alternative energy is water energy, which uses water turbines. This study aims to determine the optimum conditions for design parameters for static pressure and magnitude speed in crossflow water turbine design. The testing was done using finite element method simulation, namely Autodesk CFD. Taguchi methodolog

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Ding, Tao, Lumeng Fang, Ji-Qin Ni, Zhengxiang Shi, Baoming Li, and Yang Zhao. "Optimization Design of Agricultural Fans Based on Skewed-Swept Blade Technology." Applied Engineering in Agriculture 35, no. 2 (2019): 249–58. http://dx.doi.org/10.13031/aea.12905.

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Abstract.With the rapid development of modern agriculture facilities, agricultural fans have been widely used due to their low pressure and large airflow characteristics. However, existing agricultural fans have large flow losses and low energy efficiencies. To increase the airflow and energy efficiency of these fans, optimization designs based on skewed and swept blades were carried out. First, a “DDZ” agricultural fan (a leaf model agricultural fan commonly used in China) was chosen as the archetype fan. Its performance curves and flow field distribution were obtained by performance testing

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Sagimbayev, Sagi, Yestay Kylyshbek, Sagidolla Batay, Yong Zhao, Sai Fok, and Teh Soo Lee. "3D Multidisciplinary Automated Design Optimization Toolbox for Wind Turbine Blades." Processes 9, no. 4 (2021): 581. http://dx.doi.org/10.3390/pr9040581.

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This paper presents two novel automated optimization approaches. The first one proposes a framework to optimize wind turbine blades by integrating multidisciplinary 3D parametric modeling, a physics-based optimization scheme, the Inverse Blade Element Momentum (IBEM) method, and 3D Reynolds-averaged Navier–Stokes (RANS) simulation; the second method introduces a framework combining 3D parametric modeling and an integrated goal-driven optimization together with a 4D Unsteady Reynolds-averaged Navier–Stokes (URANS) solver. In the first approach, the optimization toolbox operates concurrently wit

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Xu, Zhi Qiang. "Research on the Optimization Design of Gas-Solid Coupling of Wind Turbine Blades." Advanced Materials Research 1022 (August 2014): 143–46. http://dx.doi.org/10.4028/www.scientific.net/amr.1022.143.

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The effects of high-altitude wind shear of wind speed should be considered, the appropriate number of distribution group should be determined and the distribution of wind speed hybrid model parameters and solving should be loaded onto the blades. When the stress of rotor blade is analyzed, the elastic deformation of the blades and the effects of the vibration of oscillating flow field on reaction of the blades must be considered during the operation. Thus the laws of blade load distribution and the corresponding deformation can be accurately calculated to analyze the interplay between deformat

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He, Fushan, Xingsheng Zheng, Weilin Luo, et al. "Collaborative Optimization of Aerodynamics and Wind Turbine Blades." Applied Sciences 15, no. 2 (2025): 834. https://doi.org/10.3390/app15020834.

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This paper explores the application of multidisciplinary design optimization to the blades in horizontal-axis wind turbines. The aerodynamics and structural performance of blades are considered in the optimization framework. In the aerodynamic discipline, class function/shape function transformation-based parameterized modeling is used to express the airfoil. The Wilson method is employed to obtain the aerodynamic shape of the blade. Computational fluid dynamics numerical simulation is performed to analyze the aerodynamics of the blade. In the structural discipline, the materials and ply lay-u

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Mugo, Sammy, Barasa H. Masinde, and Peter T. Cherop. "Optimization of Turbine Blade Pitch Angle of a Home-built Wind Turbine for Maximum Power Output." Journal of Renewable Energy and Mechanics 7, no. 02 (2024): 82–99. http://dx.doi.org/10.25299/rem.2024.18240.

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Wind energy greatly reduces the world’s dependence on fossil fuels (oil and natural gas), and is environmentally friendly. One of the most cost-effective alternatives of energy sources is wind power. This study used a horizontal axis wind turbine to investigate the optimal blade pitch angle that can give maximum electrical output. A proportional integral derivative pitch controller was used to establish blade pitch angles. Wind speeds of 3, 4, 5 and 6 m/s were run at every pitch angle respectively, and a maximum electrical power output was 1124.7W at a blade pitch angle of 16.80 when a wind sp

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Mujahid, Muhammad, Abdur Rafai, Muhammad Imran, Mustansar Hayat Saggu, and Noor Rahman. "Design Optimization and Analysis of Rotor Blade for Horizontal-Axis Wind Turbine Using Q-Blade Software." Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 64, no. 1 (2021): 65–75. http://dx.doi.org/10.52763/pjsir.phys.sci.64.1.2021.65.75.

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 Wind energy plays a tremendous role in energy power sector in terms of wind turbine. Engineers and scientists are trying to improve the wind turbine design in order to get the maximum power efficiency from the wind, which is one of the most cheap and common renewable resource in nature. The objective of this study was to design a horizontal wind turbine rotor blade for a site of known wind data in order to extract the maximum power efficiency from the wind by using blade element theory analysis and Q-Blade simulation. Eight different aerofoils of different thicknesses from two NACA fami

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Tian, Kunpeng, Bin Zhang, Cheng Shen, Haolu Liu, Jicheng Huang, and Aimin Ji. "Dynamic Cutting Performance Test and Parameter Optimization of Longicorn Bionic Blade for Industrial Hemp Harvester." Agriculture 13, no. 5 (2023): 1074. http://dx.doi.org/10.3390/agriculture13051074.

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In response to the unclear issue of whether the dynamic cutting performance and structural parameters of an industrial hemp blade, which was developed earlier based on the bionic prototype of the batocera horsfieldi, can be optimized in actual working conditions, this paper analyzes the effective clamping conditions of a reciprocating double-acting cutting blade for stalks and the cutting motion. To investigate the effect of different structural and motion parameters, as well as their interactions, of the bionic blade on cutting energy consumption, bionic blades with different combinations of

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Sun, Jianqiang, Sheng Li, and Hao Wang. "The Influence of Blade Structure Optimization on the Hydraulic Performance of Vane Pump." Academic Journal of Science and Technology 10, no. 1 (2024): 105–13. http://dx.doi.org/10.54097/54yg0j97.

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Vane pump has the problems of low pressure reduction efficiency and easy to be stuck at the bottom of the well. In order to solve this problem, the annular pressure reduction downhole tool of vane pump based on eddy current principle is adopted. On the basis of introducing the principle of eddy current hydraulic pressure reduction technology, this paper studies the influence of blade number, blade outlet angle, blade chord height and blade thickness on tool characteristics. The results show that the tool head increases with the increase of blade number, increases first and then decreases with

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Karthik, Mr S. "Optimization and Vibration Analysis of Compressor Blade with Different Blade Angle." International Journal for Research in Applied Science and Engineering Technology V, no. IV (2017): 558–67. http://dx.doi.org/10.22214/ijraset.2017.4100.

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Quan, Hui, Yongkang Wu, Ying Guo, Kai Song, and Yanan Li. "Multiobjective Hydraulic Design and Performance Analysis of a Vortex Pump Based on Orthogonal Tests." Shock and Vibration 2021 (March 29, 2021): 1–14. http://dx.doi.org/10.1155/2021/6687856.

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We design optimization on the overall blade structure of a vortex pump conducted by using the orthogonal test method to clarify the matching relationship of impeller and casing structures and then improve the hydraulic performance of the vortex pump. Based on two different impeller structures of forward-deflecting (denoted as R1 − F2) and backward-deflecting (denoted as F1 − R2), key parameters describing the impeller structure are calculated through optimization for the objective function of hydraulic efficiency by means of orthogonal tests and computational fluid dynamic simulations. Optimiz

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Divakaran, Unnikrishnan, Ajith Ramesh, Akram Mohammad, and Ratna Kishore Velamati. "Effect of Helix Angle on the Performance of Helical Vertical Axis Wind Turbine." Energies 14, no. 2 (2021): 393. http://dx.doi.org/10.3390/en14020393.

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The energy crisis has forced researchers to look for various non-conventional energy sources. Wind energy is one of the potential sources, and researchers have invested resources in developing different kinds of wind turbines. Vertical axis wind turbines (VAWT) have received less attention than their horizontal-axis counterparts. A helical-bladed VAWT is preferred because it makes perfect sense as an improvement in design, as they have higher azimuth angles of power generation capabilities. This paper studies the effects of the helix angle of blades in the aerodynamic performance of VAWT using

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Taufik Ulhakim, Muhamad, Muhammad Muhtar Syafari, and Sukarman Sukarman. "Performance Analysis of a Laboratory-Scale Wind Turbine: Blade Angle and Its Effect on Efficiency." Jurnal Teknik Mesin Mechanical Xplore 5, no. 2 (2025): 113–23. https://doi.org/10.36805/jtmmx.v5i2.8476.

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A wind turbine power plant (WTPP) is a renewable energy system that harnesses wind energy to generate electricity. Indonesia has been identified as a region with considerable wind energy potential, making it a promising location for developing this technology. In alignment with this potential, the Indonesian government has set a target of approximately 7 GW of installed wind turbine capacity by 2030. This study examines the influence of blade angle on the efficiency of electrical energy generation. Three blade angle variations—20°, 30°, and 40°—were analyzed using an experimental setup featuri

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