密相、湍流、可压、气固两相流理论及在管道中的应用

An alysis of dense,turbulent,compressible,gas-particle two-phaseflow an d its application to pipe flow

摘要: 就密相、湍流、可压、气固两相流的基本方程用双流体模型进行了较详尽地归纳。与单相流体相比，在两相流的基本方程中，多了一个变量(体积浓度)及两相间的耦合作用，并用CDIPSA方法对可压密相上升管道湍流流动进行了计算。结果表明：随颗粒直径的增加，使得单个颗粒脉动速度减小；但是气体及颗粒的速度差却随之增大。

Abstract: This paper deals with the dense, turbulent, compressible gas-particle two- phase flow in detail. Compare to single-phase flow, on the governing equations of two-phase, a variable, volume density, was introduced, the inte raction between the two-phase and