Numerical studies on alluvia settlement, considering hydrodynamic interaction

The paper addresses the model problem on the motion of alluvia clouds in an infinite fluid. Deposition fractions are described in close relationship with one another. For this type of calculation, only the finiteness of particles dimensions is taken into consideration. The motion of alluvia has been found to be closely dependent on the ratio between the size of granules. Time dependence of separation periods of fractions on the dimensionless radius for different densities of samples has been studied. It has been established that for particles of similar dimensions, calculation of the rate of sedimentation using Stokes's formula is not possible.