Numerical Simulation of Flow Field in Low-specific-speed Centrifugal Pump
LU Chi1, CHEN Ci-chang2, YANG Chang-ming3, XU Lai-fu1
1.School of Energy and Environment of Xihua University, Chendu 610039, China; 2.Southweast Petroleum Institute, Chengdu 610500, China; 3.School of Mechanical Engineering and Automation of Xihua University, Chendu 610039, China
Abstract：This paper has carried on a numerical simulation to the three dimensional flow inside the low-specific-speed centrifugal pump impeller by using the computation hydromechanics software Fluent.The simulation results under different operating modes are very identical with the actual situations.Through the analysis of the pressure field,the authors proposed a succinct method for the judgment of whether there is a new cavitation on the impeller and the way to compute the essential cavitation remainder △hr.Through the analysis of the velocity field,it confirmed the design method of enlarging flow rate from another angle.At the same time it also provides a reliable way for analyzing the water pump′s performance and the optimal design plan.
卢池；陈次昌；杨昌明；徐来福. 低比转速离心泵内部流场的数值模拟[J]. 排灌机械工程学报, 2005, 23(6): 6-9.
LU Chi, CHEN Ci-chang, YANG Chang-ming, XU Lai-fu. Numerical Simulation of Flow Field in Low-specific-speed Centrifugal Pump. Journal of Drainage and Irrigation Machinery Engin, 2005, 23(6): 6-9.
