摘要
本文探讨了一种求解二维原始变量湍流模型方程组的预处理的方法。依据这种预处理方法，采用交错网络和对角化隐式近似因子分解格式就驱动方驱动腔进行了数值模拟。数值结果表明，这样的预处理可适当放宽时间步长。
A preconditional method is presented for solving 2 Dturbulent flow model in primitive variables. By using this method with MAC mesh and diagonalized implicit approximate factorization splittingscheme, numerical simulation of square driven flow be done. Final results show that the preconditioned method can relax restrict for time step and accelerate toward convergence.
关键词
湍流
预处理
不要压缩流
数值模拟
N-S方程
turbulent flow, preconditioned method, diagonalized implicit approximate, factorization splitting scheme
