Numerical investigation of water entry of a wedge into waves with current effects using a fully nonlinear HOBEM

摘要: Abstract This paper concerns the hydrodynamic performance of a two-dimensional asymmetric wedge entering waves obliquely with gravity effect in presence uniform current. A time-domain higher-order boundary element method (HOBEM) based on potential theory fully nonlinear conditions is developed to solve this problem. stretched coordinate system adopted spatial domain avoid large number elements discretized fixed computational at initial stage. During mesh regriding and interpolation, rotation scheme employed meet requirement continuity flux intersection points. An auxiliary function introduced calculate pressure distribution body surface. The present model validated against published numerical results for vertical wave entry absence currents. Numerical calculations are conducted analyze dependence free surface elevation physical parameters, such as current velocity, incident amplitude, location, heel angle oblique motion. It found that variation velocity has obvious both horizontal fluid steepness, which play major role pressure.