I’m trying to model airflow in an enclosed shelter, in which six people’s exhalation acting as momentum sources and as passive scalars. Although the mesh was successful, I’m running into problems with the simulation.
First off, the simulation runs to the maximum allowable time, even though the run time estimation is 55-83 minutes. I have tried to combat this by making the mesh coarser, but haven’t been successful.
Additionally, I received an error of detected divergence of the linear system solver. It was recommended that I lower the relaxation factor of T1. Therefore, I lowered the relaxation factor of T* from 0.3 to 0.2. I did this because I received an error of linear divergence.
After making these adaptations, I ran the model one more time, but the run cancelled itself at 500 minutes. I looked at the results, and concerningly, it appears that airflow is only happening at the surfaces of the momentum sources and not throughout the entire enclosure.
Any help as to how to fix these issues would be much appreciated. Here is a link to the project: https://www.simscale.com/projects/aJpersing/igloo_6_people_door_closed/