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논문 기본 정보

자료유형
학술저널
저자정보
Poguluri, Sunny Kumar (Department of Ocean System Engineering, Jeju National University) Bae, Yoon Hyeok (Department of Ocean System Engineering, Jeju National University)
저널정보
테크노프레스 Ocean systems engineering Ocean systems engineering 제8권 제4호
발행연도
2018.1
수록면
361 - 380 (20page)

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초록· 키워드

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The dynamic performance of the wave energy converter (WEC) rotor with different geometric parameters such as depth of submergence and beak angle has been assessed by considering the linear potential flow theory using WAMIT solver and along with the computational fluid dynamics (CFD). The effect of viscous damping is incorporated by conducting numerical free decay test using CFD. The hydrodynamic coefficients obtained from the WAMIT, viscous damping from the CFD and estimated PTO damping are used to solve the equation of motion to obtain the final pitch response, mean optimal power and capture width. The viscous damping is almost 0.9 to 4.6 times when compared to the actual damping. It is observed that by neglecting the viscous damping the pitch response and power are overestimated when compared to the without viscous damping. The performance of the pitch WEC rotor in the Jeju western coast at the Chagwido is analyzed using Joint North Sea Wave Project (JONSWAP) spectrum and square-root of average extracted power is obtained. The performance of WEC rotor with depth of submergence 2.8 m and beak angle $60^{\circ}$ found to be good compared to the other rotors.

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