[Aero_Denis]

Hello everbody,

I'm simulating a Ahmed body...

Firstly i did a transient simulation, with the following BC:

-Ahmed surface -> Wall
-Inlet -> Velocity-inlet (40m/s)
-Outlet-> Pressure-outlet
-Road -> Wall
-Symmetry Plane-> Symmetry
-Top -> Wall

Firstly I used a k-e model, after I changed to k-omega, and in both case everything was good, low rediduals, Cd and Cl converges and etc...

After I tried to consider the ground effect. I changed the Road bondary condition to wall moving (I considered the same inlet speed 40m/s). When I used k-e model everything was right...But using k-omege model the solution never converges, Cl and Cd gets a ocilatory behavior...

Anybody knows how could I make the K-omega model works considering ground effect?