Particulate Flow Simulation

The Motion of 120 ellipsoids in a verical cylinder filled fully by an incompressible viscous Newtonian fluid 25 < t < 32.

The flow is periodic in the vertical direction.
The length of the cylinder is 2 and its diameter is 1.
The dimension of computational domain = (0,1+4h)x(0,1+4h)X(0,2).
Three semi-axes are 0.055, 0.055, 0.135.
The density of tha ellipsoid is 1.
The density of fluid is 1.
The viscosity is 0.1.
The initial velocity field is a fully developed tube Poiseuille flow with maximal speed of 5.
The pressure drop is 8 per unit length.
The mesh size for the velocity field is 1/80.
The mesh size for the pressure is 1/40.
The time step is 0.001.
The averaged translation speed is 2.39 for 30 < t < 32.
The averaged particle Reynolds number is 6.453 for 30 < t < 32.