Could someone please help with debugging of the code for the particle exploding behaviour:
https://youtu.be/qdRJLA0vZG8
The case is derived from periodic channel example. Interestingly the behaviour is not flow dependent as the result is the same for different inlet velocities (even U=0). I have seen there was a particle-mesh interaction Bug (somewhere in v2), but I gues this was resolved by now.
I have tried reducing the timestep, changing particle-wall interaction parameters, etc but cannot get anywhere.
Thanks,
Jurij
| Attachment | Size |
|---|---|
 log_run_parallel_cfdemsolverpiso_periodicchannel_cfddem.txt | 57.84 KB |
| log_run_liggghts_init_dem.txt | 8.59 KB |
jurijgostisa | Wed, 03/26/2025 - 20:19
faulty mesh, but new problems arise
I fixed the problem - it was the faulty mesh. I made it in Salome and it seems that the chamfered edges included overlapping triangles -> https://postimg.cc/rdSZnLm2
Now I came to a new problem:
-> when I start the cfdem calculation the velocity won't propagate from the inlet - https://postimg.cc/3Wb1ZwBD
-> interestingly when I run the calculation directly (pisoFoam from the CFD folder) the result is as expected - https://postimg.cc/gxpZy9fZ
Any ideas?