Incoming mass flow detained
Posted: Mon Feb 13, 2023 11:56 am
Hi all,
I try to run a 3D computation of downward facing step with periodic BC in the spawise direction. The mesh is supposed to composed of both strcutured and non-structured cells, but as I face many issues to make it works, I tried to run a computation on a fully unstructured mesh as a first step. After few timesteps I obtain the warning message: "Incoming mass flow detained". I run the computation on 10 processors.
I see several warning messages in the listing file that can be the cause of this issue but I do not understand why they appear:
1) No "partition_input/domain_number_10" file available; -> what does it means? I effectively do not provide any partition input but I set the partioning to "default"
2) the number of interior faces and boundary faces is modified due to joining associated with periodicity BC:
3) Mesh quality issue has been detected:
However, I have very little constaint on my mesh and the geometry is simple. See the mesh overview below:
The used mesh and the setup file can be downloaded here: https://filesender.renater.fr/?s=downlo ... fef4754f8a
The listing file is attached.
Thanks a lot for your help !
I try to run a 3D computation of downward facing step with periodic BC in the spawise direction. The mesh is supposed to composed of both strcutured and non-structured cells, but as I face many issues to make it works, I tried to run a computation on a fully unstructured mesh as a first step. After few timesteps I obtain the warning message: "Incoming mass flow detained". I run the computation on 10 processors.
I see several warning messages in the listing file that can be the cause of this issue but I do not understand why they appear:
1) No "partition_input/domain_number_10" file available; -> what does it means? I effectively do not provide any partition input but I set the partioning to "default"
2) the number of interior faces and boundary faces is modified due to joining associated with periodicity BC:
Code: Select all
Before joining
Number of cells: 123186
Number of interior faces: 234279
Number of boundary faces: 24186
Number of vertices: 26151
After joining
Number of cells: 123186
Number of interior faces: 245435
Number of boundary faces: 13030
Number of vertices: 26151
Code: Select all
Criterion 2: Offset:
Number of bad cells detected: 19123 --> 16 %
Criterion 3: Least-Squares Gradient Quality:
Number of bad cells detected: 2551 --> 2 %
The listing file is attached.
Thanks a lot for your help !