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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 49574 (08)
- University: Sharif University of Technology
- Department: Mechanical Engineering
- Advisor(s): Abbaspour, Majid
- Abstract:
- Marine current power has been utilized in recent years as one of the most foreseeable renewable energy sources. In this study a multi-objective hydrofoil optimal design is carried out for use in marine current turbine in order to improve hydrodynamic performance due to low speed current in Qeshm channel. A particle swarm optimization code using FORTRAN is developed and coupled with XFoil software as flow solver that is based on panel method. B-spline curve is used to parameterize the hydrofoil shape and the coordinates values of the control points are designated to act as optimization parameters. Validity of flow solver examined by comparison made between computed data against experimental polar from literature. Five Hydrofoils from root to tip are designed for a MCT at low current speed with three blades. Harp_Opt which is based on Blade Element Momentum theory used in first stage to obtain chord and angle of twist distribution along blade, these values used to initialize optimization and solving procedure. Finally power coefficient, rotational speed, cavitation criteria and power are calculated for optimized turbine and compared to initial turbine and Betz criteria
- Keywords:
- Particles Swarm Optimization (PSO) ; Optimization ; Genetic Algorithm ; Marine Current Turbine ; Hydrofoil ; Renewable Energy Resources
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