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I have designed a vessel for gas seperation and I want to check of my calculations are representative with Autodesk CFD.
But when I hit the button Solve he starts with meshing but at te step Computing restart BC data the pops up a messagebox with the message that the analysis has stopped because the solver exited unexpectedly.
Does somebody know what the reason can be for this problem?
I do not use thermal conditions only flow and pressure.
I am not 100% sure but it looks that you do not have a fluid volume in the study.
Every piece of a tank is a solid body, so that is the reason why the solver quit.
If you only compute the flow inside without the heat transfer you could only be left the inner volume body by setting it as fluid and suppressing the rest of them.
If you still have some problems, just attach the files.
I second what Karol said above. You don't have any fluid material hence the error.
You need to set the inside volume of the tank to a Fluid material.
In addition, the inlet has both Volume Flow Rate and Pressure boundary condition (BC). This is over-constrained. Remove the Pressure BC at the inlet and keep only the flow rate.
