Abstract
The hydrodynamic performance of the rectangular V-type otter board is studied by two kinds of numerical simulation methods. The model tests are conducted in the flume tank as well as a comparison to the numerical results. It is found that the CFX analysis is better at simulating the forces, especially for predicting the maximum lift coefficient and the maximum lift-drag ratio. On the other hand the FLUENT analysis is better at simulating the velocity field. The full-scale otter board is then studied by means of CFX simulation to investigate their hydrodynamic performance. The results show that the otter board will be optimized when the aspect ratio is set to 0.490 with a dihedral angle (Г) of 17°. It is confirmed that the numerical simulation is a powerful tool in studying the hydrodynamic characteristics of the otter board and is useful in designing and optimizing otter boards.
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Acknowledgements
The authors thank Dr. Weiguang Bao, Ocean University of China, for his valuable suggestions, and staff of the Laboratory of Fishery Engineering for their technical help. The present work was supported by a Special Fund for Agro-scientific Research in the Public Interest (201203018; 201303050-02), National Natural Science Foundation of China (31072246; 31172446) and the Fundamental Research Funds for The Central Universities (201564020).
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Xu, Q., Huang, L., Zhao, F. et al. Study on the hydrodynamic characteristics of the rectangular V-type otter board using computational fluid dynamics. Fish Sci 83, 181–190 (2017). https://doi.org/10.1007/s12562-017-1065-5
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DOI: https://doi.org/10.1007/s12562-017-1065-5