Wave slamming loads on a circular cylinder during water entry and the subsequence submergence process are predicted based\non a numerical wave load model. The wave impact problems are analyzed by solving Reynolds-Averaged Navier-Stokes (RANS)\nequations andVOF equations.Afinite volume approach (FV) is employed to implement the discretization of the RANS equations.A\ntwo-dimensional numerical wave tank is established to simulate regular ocean waves.Thewave slamming problems are investigated\nby deploying a circular cylinder into waves with a constant vertical velocity.The present numerical method is validated using other\nnumerical or theoretical results in accordance with varying free surface profiles when a circular cylinder sinks in calm water. A\nnumerical example is given to show the submergence process of the circular cylinder in waves, and both free surface profiles and\nthe pressure distributions on the cylinder of different time instants are obtained. Time histories of hydrodynamic load on the\ncylinder during the submergence process for different wave impact angles, wave heights, and wave periods are obtained, and results\nare analyzed in detail
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