壁判据用于计算流体力学（CFD）可信度评估

本文把作者提出的近壁干扰剪切流动(ISF)全域理论与流体运动方程组及流体在壁面上无滑移条件相结合导出一组壁面判据.壁判据为计算流体力学(CFD)仿真的可信度评估提供了基于流体理论的一条直接验证途径.对不可压缩流动的十一个熟知的NS方程组精确解,包括二维驻点和斜入射再附点流,二维分离点和背风驻点流,轴对称驻点和背风驻点流,旋转圆盘附近的三维Von Karman 流、收缩和扩张渠道流和非定常斜入射三维驻点流;以及经典边界层及其无粘外流和相似性边界层及其粘外流的NS方程组解,提出可用于验证近壁流动计算的几个壁相关函数.证实它们准确满足所有壁判据;说明壁判据可用来检验NS方程组数值解近壁计算结果的计算精度并验证其可信度.

The Wall-surface criteria with application to evaluating creditability of CFD simulations

A set of wall-surface criteria deduced by combing the near-wall interacting shear flows(ISF) theory presented by the author with the basic equations of fluid motion and the velocity no-slip conditions at the wall are suggested in this paper.The wall-surface criteria provide a theoretical way to evaluate creditability of CFD simulations.The well-known eleven exact solutions of the Navier-Stokes(NS) equations for incompressible fluid flows are proved to be satisfied accurately all wall-surface criteria.The solutions of NS equations for both plate boundary layer/outer inviscid flow and "similar" boundary layer/outer inviscid flow satisfy all wall-surface criteria.These show that the wall-surface criteria can be to examine accuracy of numerical solutions of NS equations and to verificate creditability of NS equations simulations for near wall flow.Several wall-related functions are also presented,which can be to examine numerical accuracy of CFD simulations for near wall flows.