In chapter three , the momentum integral equations and their solutions of two - phase fluids in boundary layer are given and the no - disturbance solutions on the surface of vane are required . leading into the disturbance factor of no - dimension and thickness coefficient ks in boundary layer , the numerical method of finite approximation is used to calculate the boundary layer 第三章给出了固液两相流泵的边界层动量积分方程及其解的一般表达式,并得到叶片表面的无扰动解;引入了无量纲扰动因子及边界层厚度系数k _ ,给出了用于边界层计算的有限次逼近的计算方法。