no vortex shedding on the pleated airfoil
 

Hello!

a mesh of multiple blocks have been made in Gridgen and imported as a PATRAN file in the FLUENT giving the boundary conditions at the left as Velocity_inlet and at the right as outflow and upside and bottom of the block as outflow but not allowing to leave anything from these two parts. airfoil is taken as wall, mesh near the airfoil is very fine, but no vortex shedding is formed. please help me.

Thanks