【摘要】 以螺旋离心泵为对象,利用欧拉k-ε数学模型对其内部三维流动进行数值模拟,计算了颗粒直径相同和浓度不同、颗粒直径不同和浓度相同以及同一流体中含有两种不同直径颗粒等三种状况下螺旋离心泵的液固两相流场,比较了颗粒直径和浓度对计算结果的影响,分析了浓度、速度、压力等流动参数在泵内的分布规律及相互影响,为改善叶轮的性能和进一步深入研究泵内的液固两相流动机理提供了一定的参考。更多还原

【Abstract】 Using eulerian dispersed turbulence model(k-ε),the numerical simulation of the three-dimensional interior fluid flow in the screw centrifugal pump is computed by choosing the different diameter and volume fraction.The distribution of the particle concentration,velocity and total-pressure is analyzed.Reference information for the improvement of the pump can be obtained by the analysis of the solid/liquid two-phase flow in the channel of the pump.更多还原