Simple 2D Flow Problem but no convergence

Hi All,

I am trying to simulate very simple fluid flow with an inlet and outlet boundary conditions but I am having trouble with convergence. For some reason, my result would not converge. I was wondering if any of the experts could have a take a look at the model I have and help me with it.

I have an air flow inlet with a specified air flow speed and an outlet. The rest of the geometry is wall.

Please share your thoughts.

thanks,