基于兴波数值模拟的RANS求解器加速方法研究

摘要

A new method is developed to initialize the RANS solver with free surface, adopting the results of wave-making numerical results as the initial values.Two computations were carried out to investigate the effect on parallel computing time of RANS solver by this initialization method. In comparison with the normal initialization method, the computing time of RANS solver initialized by wave-making numerical results can be reduced about 50％.It shows that the initialization method can improve the computing speed of RANS solver significantly with little effect on the computed results.%文章使用兴波数值方法对带自由面的RANS求解器进行初始化,将势流兴波数值计算的流场速度、压力和体积分数作为RANS求解器的初始值,研究其对RANS求解器并行计算速度的影响情况.通过对两条实用船型的计算验证表明:使用兴波数值结果初始化的RANS求解计算时间能缩短50%左右,且该方法对计算结果影响不大.