| A.Wendy |
February 27, 2013 04:50 |
Floating Point Exception - wrong boundaries or general PC problem? – OF 1.6 extend -
Hi Everybody,
Currently I am working on my masterthesis for a simulation of a gyrocopter including autorotation.
For that I started to modify the mixerGGI library to include a threedimensional autorotation.
I think I worked it out but when I try to start my computation I always get a floating point exception. After some time steps, when I restart the calculation I am able to compute again a number of time steps and so on.
This happens also with the not modified mixerGGI library.
I have no idea where the fault is. I think my boundaries are OK. Maybe my computer has just a general problem? I’ve got no idea.
Maybe someone can have a look or try to run my case with OF 1.6 extend and pimpleDyMFoam if the same error occurs?
Best wishes
Andreas
Link to the complete case: http://ubuntuone.com/0aasoEIvPToraOAPetJJie
0/U:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.6-ext |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volVectorField;
location "0";
object U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 1 -1 0 0 0 0];
internalField uniform (10 0 0);
boundaryField
{
outsideSlider
{
type ggi;
value uniform (10 0 0);
}
insideSlider
{
type ggi;
value uniform (10 0 0);
}
outlet
{
type freestream;
freestreamValue uniform (10 0 0);
}
inlet
{
type freestream;
freestreamValue uniform (10 0 0);
}
sides
{
type freestream;
freestreamValue uniform (10 0 0);
}
".*STL"
{
type movingWallVelocity;
value uniform (0 0 0);
}
}
0/p:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.6-ext |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
location "0";
object p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// density normalized pressure!!! p/rho
dimensions [0 2 -2 0 0 0 0];
internalField uniform 0;
boundaryField
{
outsideSlider
{
type ggi;
value uniform 0;
}
insideSlider
{
type ggi;
value uniform 0;
}
outlet
{
type freestreamPressure;
}
inlet
{
type freestreamPressure;
}
sides
{
type freestreamPressure;
}
".*STL"
{
type zeroGradient;
}
}
// ************************************************************************* //
Code:
Boundary-file:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM Extend Project: Open source CFD |
| \\ / O peration | Version: 1.6-ext |
| \\ / A nd | Web: www.extend-project.de |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class polyBoundaryMesh;
location "0/polyMesh";
object boundary;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
24
(
outlet
{
type patch;
nFaces 1600;
startFace 4362923;
}
inlet
{
type patch;
nFaces 1600;
startFace 4364523;
}
sides
{
type patch;
nFaces 6400;
startFace 4366123;
}
outsideSlider
{
type ggi;
nFaces 13632;
startFace 4372523;
shadowPatch insideSlider;
zone outsideZone;
bridgeOverlap false;
}
defaultFaces
{
type empty;
nFaces 0;
startFace 4386155;
}
insideSlider
{
type ggi;
nFaces 35144;
startFace 4386155;
shadowPatch outsideSlider;
zone insideZone;
bridgeOverlap false;
}
m1_STL
{
type wall;
nFaces 5880;
startFace 4421299;
}
m2_STL
{
type wall;
nFaces 5849;
startFace 4427179;
}
m3_STL
{
type wall;
nFaces 5849;
startFace 4433028;
}
m4_STL
{
type wall;
nFaces 5772;
startFace 4438877;
}
m5_STL
{
type wall;
nFaces 5849;
startFace 4444649;
}
m6_STL
{
type wall;
nFaces 5849;
startFace 4450498;
}
m7_STL
{
type wall;
nFaces 5772;
startFace 4456347;
}
m8_STL
{
type wall;
nFaces 5772;
startFace 4462119;
}
m9_STL
{
type wall;
nFaces 5801;
startFace 4467891;
}
p1_STL
{
type wall;
nFaces 5880;
startFace 4473692;
}
p2_STL
{
type wall;
nFaces 5849;
startFace 4479572;
}
p3_STL
{
type wall;
nFaces 5849;
startFace 4485421;
}
p4_STL
{
type wall;
nFaces 5772;
startFace 4491270;
}
p5_STL
{
type wall;
nFaces 5849;
startFace 4497042;
}
p6_STL
{
type wall;
nFaces 5849;
startFace 4502891;
}
p7_STL
{
type wall;
nFaces 5772;
startFace 4508740;
}
p8_STL
{
type wall;
nFaces 5772;
startFace 4514512;
}
p9_STL
{
type wall;
nFaces 5801;
startFace 4520284;
}
)
// ************************************************************************* //
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