运用泊松方程实现了强制偏流喷管内的三维网络生成，方程中的源项采用了与边界形状和边界网格点分布无关的数学形式，源项内的自由参数由横向网格线与边界的交角及横向网格线在边界处的局部曲率两个约束条件来确定，实现了由边界上的网格分布直接控制内部的网格点，使生成的网格具有良好的正变性和合理性。 The Poisson equation is used to generate the three-dimensional network in the forced jet nozzle. The source term in the equation adopts the mathematical form that has nothing to do with the boundary shape and the boundary grid point distribution. The free parameters in the source term are determined by the horizontal grid lines and the boundary The intersection angle and the local curvature of the horizontal grid line at the boundary are determined, and the internal grid points are controlled directly by the grid distribution on the boundary so that the generated grid has good positive denature and rationality.