Numerical Simulation of the Gas-liquid Two-phase Flow during Self-priming Process in a Self-priming Pump
The study on the self-priming process is essential to the improvement of self-priming pump performance. However, the process is complex and can not be easily tested by experiment. The present work is devoted to reveal the process by numerical simulation. Mixture Model, RNG k-e turbulent model and SIMPLEC method in FLUENT investigates the gas-liquid two-phase flow of a self-priming pump under simplified self-priming condition. The static pressure distributions in the pump by two-phase flow simulation are compared with that by single phase flow. The relative velocity distributions in the impeller are compared of gas and liquid phase at different gas volume fraction (GVF), the distributions of GVF are also analyzed. The results show that the static pressure value of gasliquid two-phase is slightly less than that of the single-phase. The relative velocity value and GVF on suction side are larger than that on the pressure side. The research reveals some rules of the twophase flow in the self-priming process of the external-mix self-priming pump, which can also provide a theoretical and technical support for the design optimization of self-priming pumps.
self-priming pump numerical simulation self-priming process two-phase flow
Tao Wang Hong Li
Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, Jiangsu, China
国际会议
The Third International Conference on Modelling and Simulation(第三届国际建模、计算、仿真、优化及其应用学术会议 ICMS 2010)
无锡
英文
399-404
2010-06-04（万方平台首次上网日期，不代表论文的发表时间）