均匀流中潜艇水下运动表面尾迹的数值模拟

本文通过基于RANS方程和VOF方法的非定常粘性数值方法对潜艇在均匀流中水下运动的表面尾迹特征进行了探索性研究,较好地解决了用粘性流方法来模拟远场波浪中的数值耗散问题,数值计算得到的潜艇运动尾迹特征与诸多文献和理论分析结果基本一致.本文均匀流中的数值模拟将成为潜艇在分层流运动数值模拟的基础.

Numerical simulation of surface wake for submarine moving in homogeneous fluid

An unsteady viscous numerical method based on RANS equations and VOF method was used to simulate the surface wake character of a submarine moving in homogeneous fluid. The problem of numerical dissipation appeared in the far field wave during viscous flow simulating was solved well.Numerical results of the wake character obtained were in good agreement with theoretical analysis and results from literatures. The results obtained in homogeneous fluid will be a good foundation for further study in stratified fliud.