Abstract
The existence of the heaving plates can improve the heaving motion performance of an offshore structure significantly by providing both extra added mass and damping. In the current research, numerical investigation is carried out on the hydrodynamic characteristics of both isolated square heaving plate and double square heaving plates with opening by an immersed boundary-lattice Boltzmann method. The effects on hydrodynamic performance of plates due to Keulegan-Carpenter (KC) number, frequency number, opening ratio, opening distribution and spacing of plates are examined. It is found that the heaving plates with optimized opening ratio can provide additional damping compared with the plates without opening. Better hydrodynamic characteristics of double plates can be obtained with the increase of plate spacing.
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Foundation item: This study was financially supported by the National Natural Science Foundation of China (Grant Nos. 51490672 and 51879039).
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Cong, Lf., Teng, B. Hydrodynamic Characteristics of Square Heaving Plates with Opening Under Forced Oscillation. China Ocean Eng 33, 637–648 (2019). https://doi.org/10.1007/s13344-019-0063-z
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DOI: https://doi.org/10.1007/s13344-019-0063-z