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Reply To: Truck Simulation – Boundary Conditions

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› Forums › OpenLB › General Topics › Truck Simulation – Boundary Conditions › Reply To: Truck Simulation – Boundary Conditions

October 20, 2020 at 10:00 am #5236
mgaedtke
Participant

Hi Tamas,

this looks a lot like a problem which is resolution dependent. Keep in mind that those are only warnings (falling back into regular bounce back boundary for these cells), the simulation will still run if the Mach number is realistic.

You can either try to find a compromise for the resolution, for which the mesh still fits your RAM, or run this case on a cluster computer. For 700 million cells I recommend at least 100 cores, better would be 2000.

Best,
Max