Numerical study of the free water-entry wedge in wave
WANG Ping;YUAN Shuai;ZHANG Ningchuan;CHEN Weibin;CHEN Yuan;National Marine Environmental Monitoring Center;Laboratory of Coastal and Offshore Engineering,Dalian University of Technology;
Wave impact in body water-entry cannot be ignored. Based on the hydrodynamic model,the free falling wedge water-entry cases are simulated by using the volume of fluid( VOF) method and user-defined functions. Considering the push-wave plate principle with sponge layer theory,the numerical wave flume was built. The free falling wedge in wave water-entry case was simulated,and the vertical hydrodynamic force,velocity and pressure distributions of the wedge were computed. The influence of different wave heights,wave periods and positions on wedge water-entry was also studied. Numerical results show that the free surface profile and bubble development of wedge water-entry can be simulated accurately by the module. The influence of wave on wedge water-entry was decided by the free surface and velocity field in wave flume,and the water-entry positions in wave flume had a greater impact on the wedge force and form after entering the water.