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simpleFoam stops without error message during first iteration

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Old   June 23, 2018, 04:50
Default simpleFoam stops without error message during first iteration
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Axel
Join Date: May 2016
Location: Augsburg, Germany
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Hi,

I am trying to a run a simpleFoam calculation of a flow around an object. When I start simpleFoam it is just not continuing the caluclation:

Code:
/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  5.x                                   |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : 5.x-197d9d3bf20a
Exec   : simpleFoam
Date   : Jun 23 2018
Time   : 10:47:27
Host   : "DESKTOP-NIJDP3U"
PID    : 423
I/O    : uncollated
Case   : /mnt/c/Users/fiedl/Documents/OF_Cases_local/Suzanne/fiedlerCase
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


SIMPLE: convergence criteria
    field p	 tolerance 0.01
    field U	 tolerance 0.001

Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting turbulence model type laminar
Selecting laminar stress model Stokes
No MRF models present

No finite volume options present


Starting time loop

forces forces:
    Not including porosity effects
forceCoeffs forces:
    Not including porosity effects
Time = 1

DILUPBiCGStab:  Solving for Ux, Initial residual = 1, Final residual = 0.0626463, No Iterations 1
DILUPBiCGStab:  Solving for Uy, Initial residual = 1, Final residual = 0.00795274, No Iterations 1
DILUPBiCGStab:  Solving for Uz, Initial residual = 1, Final residual = 0.0596632, No Iterations 1
What could be the reason for a simulation just stop without error message?
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Old   June 25, 2018, 14:57
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  #2
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Axel
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So I figured out the problem was that my object was not watertight. So during meshing snappyHexMesh also meshed the interior of the object and introduces some really bad cells there. This led to the crash of the calculation.
febriyan91, bikooo3878 and saidc. like this.
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