mass force

On added mass force acting on a small particle moving unsteadily in viscous flows

粘性流中刚性颗粒非恒定运动的附加质量力

In this paper, the formula of calculating threshold velocity of non uniform sediment is established in consideration of their relative degree of expose, and the additional mass force, etc.

通过对附加质量力的概念及表达式和相对暴露度参数的引入，推得了非均匀沙起动公式。

Basset force and virtual mass force are on the same magnitude as Stokes force and are important for the motion of abrasive particles during the initial phase of particle movement in the convergent section and straight tube section of the nozzle.

当磨料颗粒在喷嘴的收缩段和直柱段中运动时，磨料颗粒所受的Basset力、虚拟质量力与Stokes力处于同一量级，对磨料颗粒的运动影响很大，不可忽略；