An ellipsoid sediments in a 2D-like channel filled with an incompressible visco-elastic fluid of Oldroyd-B type:

• the dimension of computational domain = (0, 3)x(0, 0.25)x(0, 4) initially, then it moves vertically with the center of the ellipsoid
• the semi-axis of the ellipsoid are 0.15, 0.1, 0.1
• the density of ellipsoid = 1.45
• the density of fluid = 1
• the viscosity = 0.54
• the relaxation time = 0.15
• the retardation time = 0.15/8
• the mesh size for the velocity field = 1/64
• the mesh size for the extra stress tensor = 1/64
• the mesh size for the pressure = 1/32
• the time step=0.001
• The averaged terminal speed = 1.75212
• The particle Reynolds number = 0.97340< 1
• The Mack number = 0.92345 < 1
• The Debra number = 0.876060
• The elasticity number = 0.9