Lifting of a ball in a pressure driven Poiseuille flow
Lifting of a ball in a horizontal pipe of circular cross section
containing an incompressible viscous fluid driven by pressure drop in
the horizontal direction for 0 < t < 16.
- The flow is periodic in the horizontal direction.
- The dimension of computational domain = (0,1)x(0,2)x(0,1).
- The initial position is at the bottom of the pipe.
- The radius of the pipe = 0.5.
- The radius of the ball = 0.1.
- The density of tha ball = 1.
- The density of fluid = 1.
- The viscosity = 1.
- The mesh size for the velocity field = 1/96.
- The mesh size for the pressure = 1/48.
- The time step=0.001.
- The pressure drop = 3.2 (so the maximal speed of the flow without the ball is 20).
- The last one second averaged ball speed = 14.735 (after reaching stable height).
- The last one second averaged particle Reynolds number = 2.947
- The stable height of the ball center after lifting = 0.2824