摘要
本文设想多相流是由大量流动微团连续地组成,只是在流动微团中各相均占有某一个体积分数。 在建立微团运动方程时,将它们引入,就得到具有各相运动参数的一组方程。文中主要推导出多相流系统积分型方程组,多相流第一输运公式,多相流控制体第一积分型方程组,多相流第二输运公式,多相流控制体第二积分型方程组,以及多相流控制体微分型方程组。
It is assumed that a multiphase flow is composed of an immense amount ofelementary aggregates of particles in a state of continuous flow, with everyphase possessing a certain volumetric fraction. A system of equations ofelementary aggregates' motion in terms of movement parameters featuring everyphase can thus be derived, provided these volumetric fractions are introducedrespectively. Mainly some equations are derived in the paper, including theintegral--type system of equations for a multiphase flow system,the first andsecond equation of multiphase flow transition, the first and second integral--typesystems of equations of control volume of multiphase flow and a differential-type system of equations of control volume of multiphase flow.
关键词
多相流
流体动力学
基本方程
multiphase flow
equation of transition
continuity
control volume
mass force
elementary aggregate
stress tensor
