EVALUATION ON CALCULATION METHODS OF SOLID PARTICLE SETTLING VELOCITY IN FLUID

Calculation of subsidence rate and resistance coefficient of solid particles in fluid affect the relevant technological design on the spot directly. At present, drift flow model is usually adopted in the calculation of solid fluid multiphase flow. Subsidence rate of solid phase in motionless fluid is the basis of drift flow model. So it is necessary to know the subsidence dynamic characteristics of solid particles in motionless fluid. The paper systematically describes correlation equations of subsidence rate and resistance coefficient for subsidence and interference subsidence rate of particles shape and boundary conditions.