The Calculation of Ship Wave and Wave Resistance by Panel Method in Finite Depth

摘要

Applying linear marine hydrodynamics theory, the Kelvin wave source Green function of steady motion in finite depth is decomposed to three parts: array of simple Rankine sources, local distribution and wave part. Both at subcritical and supercritical speed, the singularity of integral function are eliminated by different integral path. The Kelvin source is distributed on the surface of ship by panel method, and the wave pattern and wave resistance of ship in finite depth are calculated. The difference and connection between finite and infinite depth results are compared. It can provide the theoretical arithmetic base of improving the ship seaworthiness, increasing the speed and optimization of ship in river and offshore strip.