一、前言随着国民经济的发展,各部门对污水污物泵的需求量逐步增加,因此对其性能、可靠性等提出了较高的要求。旋流泵由于结构简单、无堵塞性能好,并且有较好的可靠性,得到了越来越广泛的应用。由于以前尚未搞清旋流泵的工作原理和内部流动规律,因此,设计中盲目性大。随着计算机技术的逐步普及,已可对泵内流动进行数值模拟。为了检验计算方法的 I. Introduction With the development of the national economy, the demand of septic pumps in various departments is gradually increasing. Therefore, higher requirements are put forward on its performance and reliability. Swirl pump due to simple structure, non-clogging performance, and has good reliability, has been more widely used. Since the working principle of the swirl pump and the internal flow rule have not been clarified before, the design is blind. With the gradual popularization of computer technology, the numerical simulation of the flow in the pump can be carried out. In order to test the calculation method