Divergence detected in amg solver pressure correction when I use an UDF for the drag force (gas-solid flow in unifrormfluidized bed)

Hey, I am trying to simulate a solid-gas fluidized bed by using a UDF for Drag coefficient. If I simulate with Syamlal or Gidaspow for drag coefficient there is no problem. But if I use a UDF i...

01 January 1970 4,868 4 View