Effect of Dissipation on the Moonpool-Javelin Wave Energy Converter

Journal of Marine Science and Engineering

卷:9

Keyi Wang¹  Dan Yu¹  Fankai Kong¹  Yeqing Jin²  Hailong Chen²  Can Yang² 

[1] College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China;

[2] Yantai Research Institute and Graduate School, Harbin Engineering University, Yantai 265500, China;

关键词: dissipation;    moonpool;    nonlinear PTO;    CFD method;    model test;   

DOI  :  10.3390/jmse9121444

来源: DOAJ

【 摘 要 】

In this work, the hydrodynamic performance of a novel wave energy converter (WEC) configuration which combines a moonpool platform and a javelin floating buoy, called the moonpool–javelin wave energy converter (MJWEC), was studied by semianalytical, computational fluid dynamics (CFD), and experimental methods. The viscous term is added to the potential flow solver to obtain the hydrodynamic coefficients. The wave force, the added mass, the radiation damping, the wave capture, and the energy efficiency of the configuration were assessed, in the frequency and time domains, by a semianalytical method. The CFD method results and the semianalytical results were compared for the time domain by introducing nonlinear power take-off (PTO) damping; additionally, the viscous dissipation coefficients under potential flow could be confirmed. Finally, a 1:10 scale model was physically tested to validate the numerical model and further prove the feasibility of the proposed system.

【 授权许可】

Unknown