摘要
本文采用有限体积法在非正交贴体坐标系下对求解三维不定常船尾绕流做了进一步的研究,将Cartesian坐标系下的N-S方程和连续方程变换到非正交贴体坐标系下的方程,用SIMPLEC方法迭代求解速度和压力耦合的有限差分方程组.最后给出了用该方法计算的SSPA-720例子.
In this paper, the finite volume method (FVM ) for solving the Reynolds-averaged Navier-Stokes equations of three-dimensional viscous flow around ship stern in non-orthogonal body-fitted coordinates (BFC) has been introduced. The Navier-Stokes equations and the continuity equations in Cartesian coordinates are transformed into a generalized curvilinear coordinates by using finite difference approximations in the trans-formed domain. The solutions of the finite difference equations are obtained iteratively by using a pressure-veloc-ity correction algorithm (SIMPLE-C). Finally, calculating example of SSPA-720 are given.
出处
《水动力学研究与进展(A辑)》
CSCD
北大核心
1998年第1期21-27,共7页
Chinese Journal of Hydrodynamics
基金
辽宁省国际合作项目基金
辽宁省博士科研起动基金
国家CASIS-Ⅲ工程
国家863资助项目
关键词
三维
船尾流
非正交
贴体坐标系
绕流
数值计算
3-D ship stern viscous flow, non-othogonal body-fitted coordinates, unsteady flow, finite-volume method (FVM).