CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   Dynamic mesh (

akash1016 January 27, 2013 12:41

Dynamic mesh
I am simulating a rigid body (transient solution) falling under gravity using dynamic mesh. I have used UDF to specify the mass amd moment of inertia of rigid body. The setup is working for density ratio (density of solid/ density of fluid ) of 17. But as soon as I reduce it fluent shows divergence at completion of each timestep. I have tried changing the solution controls, schemes, convergence criteria, time interval but nothing helps. Can anybody suggest a solution?

All times are GMT -4. The time now is 15:59.