OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHM

Improving the efficiency of tidal turbine is the key research of oceanenergy development. The focus of improving the efficiency of tidal turbine lies in the geometry of the turbine blades. Based on the hydrofoil of NACA4412,the method of Joukowski conformal transformation was used to build the param...

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Main Authors: WANG YongDing, LI NingYe
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2021-01-01
Series:Jixie qiangdu
Subjects:
Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.02.012
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author WANG YongDing
LI NingYe
author_facet WANG YongDing
LI NingYe
author_sort WANG YongDing
collection DOAJ
description Improving the efficiency of tidal turbine is the key research of oceanenergy development. The focus of improving the efficiency of tidal turbine lies in the geometry of the turbine blades. Based on the hydrofoil of NACA4412,the method of Joukowski conformal transformation was used to build the parameterized model,the genetic algorithm was realized by MATLAB programming and an optimal solution was found on the basis of using high lift-drag ratio as the objective function under the design variables and constrains. After obtain the optimal solution,use the CFD software was used to simulate the initial hydrofoil and the optimized laminar hydrofoil. According to the results,we can find that the optimized hydrofoil hada great improvement in the liftdrag ratio and lift coefficient compared with the initial hydrofoil. The lift coefficient and the maximum lift-drag ratio of the hydrofoil are increased by 18. 72% and 46. 84% respectively,and the angle of attack is smaller when the hydrofoil reaches the maximum lift-drag ratio after being optimized. The results validate the rationality and validity of the proposed optimal solution and provide a theoretical basis for the subsequent optimization design of tidal turbine hydrofoils.
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spelling doaj.art-2df768d753e14a048438c4d52f178b002023-08-01T07:52:53ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692021-01-014332733230610239OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHMWANG YongDingLI NingYeImproving the efficiency of tidal turbine is the key research of oceanenergy development. The focus of improving the efficiency of tidal turbine lies in the geometry of the turbine blades. Based on the hydrofoil of NACA4412,the method of Joukowski conformal transformation was used to build the parameterized model,the genetic algorithm was realized by MATLAB programming and an optimal solution was found on the basis of using high lift-drag ratio as the objective function under the design variables and constrains. After obtain the optimal solution,use the CFD software was used to simulate the initial hydrofoil and the optimized laminar hydrofoil. According to the results,we can find that the optimized hydrofoil hada great improvement in the liftdrag ratio and lift coefficient compared with the initial hydrofoil. The lift coefficient and the maximum lift-drag ratio of the hydrofoil are increased by 18. 72% and 46. 84% respectively,and the angle of attack is smaller when the hydrofoil reaches the maximum lift-drag ratio after being optimized. The results validate the rationality and validity of the proposed optimal solution and provide a theoretical basis for the subsequent optimization design of tidal turbine hydrofoils.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.02.012Tidal turbine;Hydrofoil optimization;Genetic algorithm;Blade element momentum theory;Numerical simulation
spellingShingle WANG YongDing
LI NingYe
OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHM
Jixie qiangdu
Tidal turbine;Hydrofoil optimization;Genetic algorithm;Blade element momentum theory;Numerical simulation
title OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHM
title_full OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHM
title_fullStr OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHM
title_full_unstemmed OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHM
title_short OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHM
title_sort optimization and research of tidal turbine blades based on genetic algorithm
topic Tidal turbine;Hydrofoil optimization;Genetic algorithm;Blade element momentum theory;Numerical simulation
url http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.02.012
work_keys_str_mv AT wangyongding optimizationandresearchoftidalturbinebladesbasedongeneticalgorithm
AT liningye optimizationandresearchoftidalturbinebladesbasedongeneticalgorithm