Increasing Square Cavity mesh to 100x100 causes crash. Why?
Hi, I am a beginner with OpenFOAM and CFD in general.
I am experimenting with the first tutorial, the square cavity. For my first modifications I edited the mesh size. Changing from 20x20 to 40x40 caused no problem. However if I edit blockmeshdict to give me a 100x100 mesh then icoFoam crashes.
I get this:
Notice this at the top of the output you've given?
I strongly suggest that you read the User Guide more carefully and take notes, because in the User Guide, section "220.127.116.11 Changing time and time step" it explains how the mesh resolution relates to the Courant Number and how the "deltaT" value should be adapted to the new mesh resolution.
If you did take this into account, you should have indicated what calculations you made and the "deltaT" value you used ;)
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