[thedal]

Hi,

I have to do a flow over multiple square cylinders in tandem arrangement at Re 100 and get Cd Cl plots. But I find my results are wrong. I am getting zero Cl. Can anyone please tell me if the solver conditions I have given are right or not?

1. Models - Transient - 2D Laminar case
2. Material - air - density - 1 kgm-3 and viscosity 0.01 kgm-1s-2
3. Inlet - velocity inlet - u = 1ms-1
4. Outlet - pressure-outlet - Gauge pressure 0
5. Top and Bottom boundaries - Stationary Wall - Shear stress - 0
6. Cylinders of 1m side, 1.2 m apart and no-slip Boundary Condition.
7. upstream is at 7m from the cylinder and 32 m is downstream to the cylinder.

I am getting Cl plots zero, PISO - Second order and vortices are standing at the rear end.