【摘要】 采用多重网格法模拟三维流动。控制方程在三维直角或圆柱坐标系中通过有限体积方法进行离散 ,SIMPLE算法对速度与压力进行耦合 ,亚松弛策略提高离散方程的收敛速度。在压力方程的求解过程中 ,界面速度应用由Rhie、Chow和Majumdar等人提出的动量方程插值法来剔除不合理的压力波动。三维流动算例表明采用多重网格法模拟三维流动可以得到良好的计算精度和收敛性。更多还原

【Abstract】 A full-multi-grid SIMPLE algorithm for Three-dimensional flow using co-located grid and central difference discretization for both convective and diffusive fluxes is analyzed. The example of the lid-driven flows in a cubic cavity is done. The results show that a full-multi-grid SIMPLE algorithm has both good convergence properties and high accuracy.更多还原