采用SIMPLE算法对方腔驱动流进行模拟，采用交错网格和正交结构网格，对流项采用三阶quick格式，粘性项采用中心差分格式。RE数为100到1000的计算结果非常符合。-Use the SIMPLE to solve the cavity_drive proplem with the third-precise quick scheme for the convection item.the result is with good agreement .