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논문 기본 정보

자료유형
학술저널
저자정보
Hassan el Sheshtawy (University of Duisburg-Essen) Ould el Moctar (University of Duisburg-Essen)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제45권 제5호
발행연도
2021.10
수록면
275 - 287 (13page)

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초록· 키워드

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Numerical investigation of the flow around an axial tidal turbine were investigated. Two different methods to model the flow around the tidal turbine, the multiple reference frame method and the actuator disk momentum method, were used and compared in terms of accuracy and computational efficiency. Discretization errors were performed for Power and Thrust coefficients. Numerical prediction compared favourably to the experimental measurements from physical tests of the tidal turbine in homogenous flow. The Multiple Reference Frame method was used to compute power coefficient and thrust of a tidal turbine at different tip speed ratios, the forces that act on the turbine blades, and the pressure distributions at each blade cross sections. we performed all our simulations at the best efficient point. We found that the maximum stresses on the turbine blade occurred at turbines radius between 0.8 and 0.9R<SUB>o</SUB>, where R<SUB>o</SUB> is the turbine bald radius. The optimum radial and longitudinal distances were studied for installing other turbines to produce optimum power output. We conclude that a farm of our presented turbines, which gives the maximum output power for each turbine, can be arranged with the turbines being separated by three times the turbine’s radius.

목차

Abstract
1. Introduction
2. Test Case
3. Numerical Methods
4. Numerical Methods
5. Discretization Study and Validation
6. Results
7. Computational time
8. Conclusion
References

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