共轭梯度法在三维复杂流动数值分析中的应用

Application of conjugate gradient method in three-dimensional complex flow

将多块网格技术运用于三维 T型管复杂流场的网格生成 ,利用不完全乔列斯基预处理共轭梯度 ,双共轭梯度方法求解 N- S方程的离散方程。计算表明上述方法有良好的收敛特性 ,适合于诸如

The mesh for the T-shped junctions was generated using the multi-block techniques for analysing 3D complex flow fields. The incomplete Cholesky decomposition preconditioned conjugate gradient method and bi-conjugate gradient method were applied in solving the discretized govering equations. The calculation demonstrates that the methods used in this paper have good properties in convergence, and is worth recommended for the calculations of complex flows.