Perhaps the following information will help:
-
It appears that a STL file is not generally generated for simulation purposes except in the case of PWC and LBM analysis. It appears that the format of the geometry in Tutorial 2: Pipe Junction flow is Parasolid.
-
Both LBM and PWC analysis types run on GPUs. Perhaps, this would be the reason behind the error “Your Computing quota is not sufficient to start the job” in this case.
To remedy this issue, perhaps it may help to export your model to STEP or Parasolid format instead.
Furthermore, the Geometry tab on top right corner shows that there is one self-intersecting geometry. The error on self-intersecting geometry occurs when a body has entities intersecting each other. Refer to this documentation page for more information: CAD Faults & Automatic Simulation Core Choice | SimScale.
The documentation page on the Wrap operation may help resolve the error on self-intersecting geometry: CAD Edit | CAD Preparation & Upload | SimScale
This forum post may also be helpful: Self Intersecting Geometry - #4 by SBlock and Self Intersecting Geometry - #6 by SBlock