Starting from the force balance on a solid particle, equations with dimensionless groups were also developed to calaulate the critical settling velocity of particles at the reactor bottom.
根据对固体颗粒作用力的分析，研究了反应器内固体颗粒的临界沉淀速度；
2
Because the smaller the settling of particles is, the more serious the diffusion phenomenon is.
因为颗粒越小沉降越慢，而扩散现象则越严重。
3
Apart from this, it discusses the starting current velocity of bottom sediment affected with vertical waves as well as the settling velocity of silt particles.