Numerical Simulation of the Different Ship Wave Patterns

Abstract

Numerical simulation of ship waves is of great importance to improve the environmental reality of marine simulators. By deploying different Kelvin sources or Rankine sources, this paper proposes a method to generate more realistic ship wave patterns numerically. Based on the theory of potential flow, the boundary integral equations are firstly obtained, and then are numerically discretized to a set of nonlinear equations. After that, the Jacobian-free Newton-Krylov method is adopted to solve these nonlinear equations. Thus, the ship wave pattern can be determined. Finally, the details of wave patterns are discussed and the mechanism of ship wave transformation is analyzed. Simulation results show that this method can simulate polymorphic ship waves delicately, which are more consistent with real wave patterns of different ships.