Urgent: Convergence of a 2D Laminar steady single phase duct flow

@jmusser, @gaoxi
Hello,
I am trying to model a steady laminar 2D single phase flow uing MFiX. I do not know what is wrong with my settings but it does not converge at all. I have tried everything but nothing changed… I have attached the file. If you execute it, it would diverge in a minute. what is the problem with my settings??? laminar-single.mfx (8.8 KB)

Can anyone tell me the mistake I have made in the settings? It is more than 3 days that I have posted this and yet I have not find any solution.