用来计算流体力学中非常典型的不可压缩方腔流动。包含MATLAB程序绘制流函数图。(It is used to calculate the incompressible flow of a typical square cavity in fluid mechanics. Contains MATLAB programs to draw stream function diagrams.)

利用matlab实现流体力学中经典算例：二维粘性方腔不可压流动的计算。(Matlab is used to calculate the incompressible flow in a two-dimensional viscous square cavity.)