绕船体自由表面流的数值模拟(英文)

Numerical Simulation of Free Surface Flow around Ship Hull

本文采用RANS方程和VOF算法数值模拟了系列60粘性自由面流动 ,比较了幂指数律、二阶迎风、QUICK格式对计算结果的影响 ,详细给出了波形、阻力、伴流等的计算结果。与试验及其它计算结果比较显示本文的计算方法具有较好的计算精度 ,可用于船型性能分析和优化。

The numerical simulation of free surface flow around Series-60 was carried out by solving Reynolds Averaged Navier-Stokes equations (RANSE) and RNG K-ε two-equation turbulence model together with Non-Equilibrium wall functions. Volume of Fluid (VOF) algorithm with Geo-Reconstruct scheme was applied. Power-law, second-order upwinding and QUICK difference schemes for convection were used.Computational results including resistance,wave profile and wake distribution were compared with experimental data in detail.The comparison shows that this computational method has the advantage of high accuracy for engineering purpose.