Research on wave generating and absorbing in ship viscous numerical wave tank

摘要

In this paper, shake of rocker panel was achieved by using of technology of dynamic mesh. Free surface of ship numerical wave tank was simulated through incompressible viscous fluid Reynolds-averaged Navier-Stokes (RANS) equation and volume of fraction (VOF) method, adds to source term method in the momentum equation in order to wave damping. The pressure-velocity coupling was treated with pressure implicit with splitting of operator (PISO). The first-order upwind scheme was used in momentum equation and turbulent kinetic energy and turbulence kinetic energy dissipation rate. By using of computational fluid dynamics (CFD) business software Fluent and its secondary development function, three-dimensional numerical wave tank model of regular wave based on physics wave-generating imitating method was created through turbulence model the standard k-ε. From the result, it can be known that wave generated through physics wave-generating imitating method has the feature of high quality and stability. Because a lot of meshes were moved in the calculation of program, physics wave-generating imitating method was time consuming. Parallel compute will be considered to resolve the problem in the future.