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-   -   moving Mesh problem (http://www.cfd-online.com/Forums/openfoam/79555-moving-mesh-problem.html)

ulisses August 26, 2010 19:49

moving Mesh problem
 
Hi folks,

I'm struggling to do a moving mesh for an agitator of a reactor. I did two meshes at Salome software: one to the tank reactor and another to the agitator and exported both to OpenFOAM. Then I merge these meshes. Following my boundary conditions:

(
alimentacao
{
type patch;
nFaces 4;
startFace 142286;
}
camisa
{
type wall;
nFaces 10225;
startFace 142290;
}
outsideSlider
{
type patch;
nFaces 2193;
startFace 152515;
}
insideSlider
{
type patch;
nFaces 2202;
startFace 154708;
}
)


I'm trying to do a simulation like mixer2D tutorial, however at the directory /0 of this tutorial there is a file called cellToRegion that I don't know how to do a similar file at my case.
So, I'm trying to simulate without this file. When I start the simulation the following message appears:

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
| \\ / O peration | Version: 1.5-dev |
| \\ / A nd | Revision: 1821 |
| \\/ M anipulation | Web: http://www.OpenFOAM.org |
\*---------------------------------------------------------------------------*/
Exec : icoDyMFoam
Date : Aug 26 2010
Time : 20:38:36
Host : linux-4mu5
PID : 7787
Case : /home/ulisses/OpenFOAM/ulisses-1.5-dev/run/reatorBiologico
nProcs : 1

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

Create dynamic mesh for time = 0

Selecting dynamicFvMesh mixerFvMesh
Rotating region marker point: (0 0 0) Attach-detach action = off
void mixerFvMesh::addZonesAndModifiers() : Zones and modifiers already present. Skipping.
Mixer mesh
origin : (0 0 0)
axis : (0 0 1)
rpm : 10
marker : (0 0 0)
attach-detach: off
Reading transportProperties

Reading field p

Reading field U

Reading/calculating face flux field phi

Reading field rAU if present


Starting time loop

Volume: new = 0.00787942 old = 0.00787942 change = 0 ratio = 0
Courant Number mean: 0 max: 0.0332116 velocity magnitude: 0.1
deltaT = 0.00059952
Time = 0.00059952



Zero length edge detected. Probable projection error: slave patch probably does not project onto master. Please switch on enriched patch debug for more info

From function void enrichedPatch::calcCutFaces() const
in file polyMeshModifiers/slidingInterface/enrichedPatch/enrichedPatchCutFaces.C at line 248.

FOAM aborting

Abortado

I don't know what to do to fix this error. Someone have some hint?

Thanks in advance.

ulisses September 3, 2010 19:30

Anyone?
I don't know the solution yet.


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