Numerical Simulation of Wave Radiation and Diffraction Problems with Current Effect

摘要

RANKINE source method applying continuous free surface panels is developed to examine two-dimensional linear wave-current coexist problems. The wave-current interaction problem is solved by combination of steady and unsteady potential problem respectively. The boundary integral method can be directly applied to examine the effects of current. Numerical results for both radiation and diffraction problems with current effect are compared with available data and reasonably good agreement is obtained. Apart from some well-known conclusions about the current effect, the pressure distribution of wetted body surface are extensively studied and some new phenomena are observed from our numerical prediction.