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http://dx.doi.org/10.5293/kfma.2014.17.5.060

Performance and Cavitation Analysis on Tidal Current Turbine for Low Water Level Channel  

Chen, Chengcheng (Graduate School, Department of Mechanical Engineering, Mokpo National University)
Choi, Young-Do (Department of Mechanical Engineering, Institute of New and Renewable Energy Technology Research, Mokpo National University)
Publication Information
The KSFM Journal of Fluid Machinery / v.17, no.5, 2014 , pp. 60-66 More about this Journal
Abstract
Most tidal current turbine designs are focused on medium and large scale for deep sea, less attention is paid in low water level channel, such as the region around the islands and costal sea. This study is to develop a horizontal axis tidal current turbine rotor blade which is applicable to low water level island region in southwest coastal region of Korea. In this study, the hydrofoil NACA63-415 and NACA63-817 are both adopted to analyze. The blade using NACA63-817 showed the higher maximum power coefficient and good performance at small TSR (Tip Speed Ratio), which gives the blade more advantages in operating at lower water level channel, where is characterized by the fast-flowing water. The cavitation pattern of hydrofoil is predicted by the CFD analysis and verified that the NACA63-817 is the appropriate hydrofoil in the test site of tidal current resource and the hydrofoil showed considerable performance in avoiding cavitation.
Keywords
Tidal current turbine; Blade design; Hydrofoil; Performance; Cavitation;
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Times Cited By KSCI : 1  (Citation Analysis)
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