Dear Developer,
I encountered the following error in MFIX after importing a trapezoidal geometry and running a simple case. I am unsure how to proceed with adjustments. I would greatly appreciate it if you could provide the cause of the error or offer suggestions to help resolve it. Thank you very much.
Best regards
The message suggests to check the mesh settings, and I find that you have set the number of cells to 1… this will not work. You need a finer mesh.
Dear Developer,
Thank you for your response and clarification. I tried refining the mesh, and indeed, the previous error no longer occurs. However, when I start the simulation, the time step continuously decreases until an error occurs. I have tried several different refined mesh combinations (such as 15,60,2; 20,28,2; 20,100; 2,20,120,3, etc.), but the same error, “dt < dtmin,” appears, possibly indicating that the calculation is not converging. How can I reasonably set up my mesh to ensure the case runs smoothly?
Best regards！
