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New Member
Fabian
Join Date: Mar 2022
Location: Germany
Posts: 1
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Hello,
i am a student and i'm doing a simulation for a Formula Student Team regarding the electric motor heat transfer. We have two Regions: Region Housing (Solid Aluminum) Region Water (Fluid) We've done different Geometries (different cooling concepts) with the same solvers /physics and it worked just fine so i think it is a mesh problem but i have no idea how to solve it. I already tried to delete Invalid Cells, but there are none. And i also tried to change the URF Settings. This is the error that occurs at around 30 iterations: WARNING: insufficient precision on multigrid level 8, nRows = 38 AMG coarsening halted. This may indicate double precision version is needed. A floating point error has occurred. The following error has been logged: A non-finite residual (X-momentum) was added by star.segregatedflow.SegregatedFlowSolver. Typical causes are overflow, underflow, or a division by zero.Please check your usage and inputs. Command: StepSimulation error: Server Error Those are the solvers we are using: Steady Segregated Flow Segregated Energy K-Omega Turbulence I will add photos of the mesh so you can "judge" it. Thanks a lot for any type of help. If you need any more informations let me know. https://imgur.com/a/4M1iIBt <- Pictures I already did a finer mesh (pictures is the older mesh) but it changed nothing..same error. Last edited by Fabi_THU; March 24, 2022 at 15:32. |
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failed mesh, residuals, starccm+ |
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