Performance analysis of a wave energy converter using numerical simulation technique

被引:0
作者
Mohammed Asid Zullah
Deepak Prasad
Mohammed Rafiuddin Ahmed
Young-Ho Lee
机构
[1] Korea Maritime University,Graduate School
[2] University of the South Pacific,Division of Mechanical Engineering
[3] Korea Maritime University,Division of Mechanical & Information Engineering
来源
Science in China Series E: Technological Sciences | 2010年 / 53卷
关键词
wave energy; Ansys CFX code; Savonius rotor; numerical simulation; torque; efficiency;
D O I
暂无
中图分类号
学科分类号
摘要
A general purpose viscous flow solver Ansys CFX was used to study a Savonius type wave energy converter in a 3D numerical viscous wave tank. This paper presents the results of a computational fluid dynamics (CFD) analysis of the effect of blade configuration on the performance of two Savonius rotors for wave energy extraction. A piston-type wave generator was incorporated in the computational domain to generate the desired incident waves. A complete OWC system with a 3-bladed Savonius rotor was modeled in a three dimensional numerical wave tank and the hydrodynamic conversion efficiency was estimated. The flow over the rotors was assumed to be two-dimensional (2D), viscous, turbulent and unsteady. The CFX code was used with a solver of the coupled conservation equations of mass, momentum and energy, with an implicit time scheme and with the adoption of the hexahedral mesh and the moving mesh techniques in areas of moving surfaces. Turbulence was modeled with the k-e model. The results indicated that the developed models are suitable to analyze the water flows both in the chamber and in the turbine. For the turbine, the numerical results of pressure and torque were compared for the two cases.
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页码:13 / 18
页数:5
相关论文
共 10 条
[1]  
Falnes J.(2007)A review of wave-energy extraction Marine Structures 20 185-201
[2]  
Pelc R.(2002)Renewable energy from the ocean Marine Policy 26 471-479
[3]  
Fujita R. M.(1931)The S-rotor and its applications Mech Eng 53 333-338
[4]  
Savonius S. J.(2004)A double step Savonius rotor for local production of electricity: A design study Renewable Energy 29 1843-1862
[5]  
Menet J. L.(1991)Slatted-blade Savonius wind-rotors Appl Energy 40 65-75
[6]  
Reupke P.(1978)Wind, waves, and tides Annu Rev Energy 3 29-56
[7]  
Probert S. D.(2007)An experimental study on the efficiency of the submerged plate wave energy converter Renewable Energy 32 1317-1327
[8]  
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