|
[Sponsors] |
![]() |
![]() |
#1 |
New Member
Raccoon Liu
Join Date: Apr 2024
Posts: 1
Rep Power: 0 ![]() |
I’m simulating the spray and combustion in a constant volume chamber with CONVERGE 3.0. The error message is "FATAL_ERROR: [2045] dt is already at a minimum, the simulation cannot continue". How can I fix it?
Last edited by Raccoon1995; May 2, 2024 at 04:31. Reason: Attach file |
|
![]() |
![]() |
![]() |
![]() |
#2 |
New Member
Vigneshwar Ravisankar
Join Date: Apr 2019
Posts: 26
Rep Power: 7 ![]() |
Hi Raccoon1995,
Check your initialization or boundary conditions, since your case is going into recoveries from start of the simulation. its clearly a case setup issue. You can use the example case: Fuel injectors and sprays>Spray studies>ECN Spray A Lagrangian transient RANS as reference to provide the boundary conditions and initialization. I also noticed you provided much higher grid refinement to start with, its reaching 6e6 cells at t=0, and your max AMR cells is 6e6. So the AMR will not add any cells. You can use a larger Base grid like 8mm or 16mm, and use finer embedding for spray, this will keep the cell count low. |
|
![]() |
![]() |
![]() |
Tags |
combustion chamber, converge |
|
|