NDLI: Multi-Point Shape Optimization of a Horizontal Axis Tidal Stream Turbine

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Multi-Point Shape Optimization of a Horizontal Axis Tidal Stream Turbine

Content Provider	MDPI
Author	Sheshtawy, Hassan el Moctar, Ould el Natarajan, Satish
Copyright Year	2021
Description	A method was developed to perform shape optimization of a tidal stream turbine hydrofoil using a multi-objective genetic algorithm. A bezier curve parameterized the reference hydrofoil profile NACA 63815. Shape optimization of this hydrofoil maximized its lift-to-drag ratio and minimized its pressure coefficient, thereby increasing the turbines power output power and improving its cavitation characteristics. The Elitist Non-dominated Sorting Genetic Algorithm (NSGA-II) was employed to perform the shape optimization. A comparative study of two- and three-dimensional optimizations was carried out. The effect of varying the angle of attack on the quality of optimized results was also studied. Predictions based on two-dimensional panel method results were also studied. Predictions based on a two-dimensional panel method and on a computational fluid dynamics code were compared to experimental measurements.
Ending Page	355
Page Count	16
Starting Page	340
e-ISSN	26734117
DOI	10.3390/eng2030022
Journal	Eng
Issue Number	3
Volume Number	2
Language	English
Publisher	MDPI
Publisher Date	2021-08-30
Access Restriction	Open
Subject Keyword	Eng Marine Engineering Hydrofoil Optimization Nsga-ii Cfd Xfoil Naca 63815 Bezier Curve
Content Type	Text
Resource Type	Article

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