收缩-扩张管内的固-液二相流动数值分析

The Numerical Analysis of Liquid-solid Tow-phase Flows Through Converging-diverging Nozzles

本文建立了一种固-液二相流的流动模型。该模型把固相与液相间的相互作用以源(或汇)的形式归结到液相的动量方程之中,因而物理过程比较明确。使用以该模型为基础的数值方法对在水平放置的收缩-扩张管内的固-液二相流进行理论分析,其结果表明,固相对液相的压力场及流速有明显的影响。

For liqid-solid two-phase flows, a hydraulic model is presented in this artical. Since the interaction between solid phases and liquid phases is included in the momentum equation of liquid phases in terms of sources or sinks, the physical process is clearer in the model. Liquid-solid two-phase flows through horizontal converging-diverging nozzles is analyzed theoretically using the numerical method based on this model. The computed results show that the velocity and pressure filed of liquid phases are affected evidently by solid phases.