Development of a model counter-rotating type horizontal-axis tidal turbine

[摘要] In the past decade, the tidal energies have caused worldwide concern as it can provide regular and predictable renewable energy resource for power generation. The majority of technologies for exploiting the tidal stream energy are based on the concept of the horizontal axis tidal turbine (HATT). A unique counter-rotating type HATT was proposed in the present work. The original blade profiles were designed according to the developed blade element momentum theory (BEMT). CFD simulations and experimental tests were adopted to the performance of the model counter-rotating type HATT. The experimental data provides an evidence of validation of the CFD model. Further optimization of the blade profiles was also carried out based on the CFD results.

[发布机构] Faculty of Engineering, Kyushu Institute of Technology, Sensui 1-1, Tobata, Kitakyushu; 804-8550, Japan^1

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] Blade element momentum theory;Blade profile;CFD simulations;Counter rotating;Experimental test;Horizontal axis;Tidal stream energy;Tidal turbines