CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Programming & Development

Developing a rhoPimpleDyMFoam solver

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 15, 2012, 15:55
Post Developing a rhoPimpleDyMFoam solver
  #1
New Member
 
Bernardo Vieira
Join Date: Apr 2011
Location: USA
Posts: 7
Rep Power: 15
bvieira is on a distinguished road
I’m trying to implement a new solver, essentially adding mesh motion capability into rhoPimpleFoam. I’m using pimpleDyMFoam as a basis to figure out what needs to be changed. My ultimate goal is to be able to run pitching airfoils on a compressible flow solver.

I was able to compile the new solver, but when I try to run, I getting a dimensions error:

Code:
  Different dimensions for -=
       dimensions : [1 0 -1 0 0 0 0] = [0 3 -1 0 0 0 0]
This seems to be a difference of density (kg/m3) in one of the sides. Tracking down where the error is coming from, I figured that it happens in the following line of my code:

Code:
// Make the fluxes relative to the mesh motion
fvc::makeRelative(phi, U);
Therefore, I suspect there may be something wrong in the correctPhi.H file.
I’d appreciate any thoughts on this issue. I’m attaching the correctPhi.H file, as well as the rhoPimpleDyMFoam.C file.

I'm using the latest OpenFOAM 2.1.0.

Thank you.

correctPhi.H

Code:
{
    if (mesh.changing())
    {
        forAll(U.boundaryField(), patchI)
        {
            if (U.boundaryField()[patchI].fixesValue())
            {
                U.boundaryField()[patchI].initEvaluate();
            }
        }

        forAll(U.boundaryField(), patchI)
        {
            if (U.boundaryField()[patchI].fixesValue())
            {
                U.boundaryField()[patchI].evaluate();

                phi.boundaryField()[patchI] =
                    U.boundaryField()[patchI]
                  & mesh.Sf().boundaryField()[patchI];
            }
        }
    }

    wordList pcorrTypes
    (
        p.boundaryField().size(),
        zeroGradientFvPatchScalarField::typeName
    );

    forAll(p.boundaryField(), patchI)
    {
        if (p.boundaryField()[patchI].fixesValue())
        {
            pcorrTypes[patchI] = fixedValueFvPatchScalarField::typeName;
        }
    }

    volScalarField pcorr
    (
        IOobject
        (
            "pcorr",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::NO_WRITE
        ),
        mesh,
        dimensionedScalar("pcorr", p.dimensions(), 0.0),
        pcorrTypes
    );

    while (pimple.correctNonOrthogonal())
    {
        //Changed the correction here to match pEqn.H (rhoPimpleFoam)
        fvScalarMatrix pcorrEqn
        (
            fvm::ddt(psi, pcorr)
          + fvc::div(phi)
          - fvm::laplacian(rho*rAU, pcorr)
        );

        // Removed the pressure referencing
        pcorrEqn.solve();

        if (pimple.finalNonOrthogonalIter())
        {
            phi -= pcorrEqn.flux();
        }
    }
}
//Changed to compressible version (not sure if rhoEqn.H should also be included)
#include "rhoEqn.H"
#include "compressibleContinuityErrs.H"
rhoPimpleDyMFoam.C

Code:
#include "fvCFD.H"
#include "basicPsiThermo.H"
#include "turbulenceModel.H"
#include "dynamicFvMesh.H"
#include "bound.H"
#include "pimpleControl.H"
//#include "IObasicSourceList.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

int main(int argc, char *argv[])
{
    #include "setRootCase.H"
    #include "createTime.H"

    #include "createDynamicFvMesh.H"

    pimpleControl pimple(mesh);

    #include "initContinuityErrs.H"
    #include "createFields.H"
    #include "readTimeControls.H"

    // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

    Info<< "\nStarting time loop\n" << endl;

    while (runTime.run())
    {
        #include "readControls.H"
        #include "compressibleCourantNo.H"

        // Make the fluxes absolute
        fvc::makeAbsolute(phi, U);

        #include "setDeltaT.H"

        runTime++;

        Info<< "Time = " << runTime.timeName() << nl << endl;

        mesh.update();
        
        if (mesh.changing() && correctPhi)
        {
            #include "correctPhi.H" 
        }

        // Make the fluxes relative to the mesh motion
        fvc::makeRelative(phi, U);

        if (mesh.changing() && checkMeshCourantNo)
        {
            #include "meshCourantNo.H"
        }
        
        #include "rhoEqn.H"
 
        // --- Pressure-velocity PIMPLE corrector loop
        while (pimple.loop())
        {
            #include "UEqn.H"
            #include "hEqn.H"

            // --- Pressure corrector loop
            while (pimple.correct())
            {
                #include "pEqn.H"
            }

            if (pimple.turbCorr())
            {
                turbulence->correct();
            }
        }

        runTime.write();

        Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
            << "  ClockTime = " << runTime.elapsedClockTime() << " s"
            << nl << endl;
    }

    Info<< "End\n" << endl;

    return 0;
}


// ************************************************************************* //

Last edited by bvieira; March 16, 2012 at 16:47.
bvieira is offline   Reply With Quote

Old   March 16, 2012, 15:59
Default
  #2
Senior Member
 
Karl-Johan Nogenmyr
Join Date: Mar 2009
Location: Linköping
Posts: 279
Rep Power: 21
kalle is on a distinguished road
Interesting work. I recently wrote a low mach number combustion solver for OF2.1 capable of dynamic meshes (for adaptive refining) Here are is my correctPhi.H and another file which is called before the time loop starts.

correctPhi.H
Code:
{
    if (mesh.changing())
    {
        forAll(U.boundaryField(), patchi)
        {
            if (U.boundaryField()[patchi].fixesValue())
            {
                U.boundaryField()[patchi].initEvaluate();
            }
        }

        forAll(U.boundaryField(), patchi)
        {
            if (U.boundaryField()[patchi].fixesValue())
            {
                U.boundaryField()[patchi].evaluate();

                phi.boundaryField()[patchi] =
                U.boundaryField()[patchi] 
                & mesh.Sf().boundaryField()[patchi];
            }
        }
    }

#include "compressibleContinuityErrs.H"

    volScalarField pcorr
    (
        IOobject
        (
            "pcorr",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::NO_WRITE
        ),
        mesh,
        dimensionedScalar("pcorr", p.dimensions(), 0.0),
        pcorrTypes
    );

    dimensionedScalar rAUf("(1|A(U))", dimTime, 1.0);

    while (pimple.correctNonOrthogonal())
    {
        fvScalarMatrix pcorrEqn
        (
            fvm::laplacian(rAUf, pcorr) == fvc::div(phi) - divU
        );

        pcorrEqn.solve();

        if (pimple.finalNonOrthogonalIter())
        {
            phi -= pcorrEqn.flux();
        }
    }

#include "compressibleContinuityErrs.H"
}
And a set up file createPcorrTypes.H

Code:
   
 wordList pcorrTypes
    (
        p.boundaryField().size(),
        zeroGradientFvPatchScalarField::typeName
    );

    for (label i=0; i<p.boundaryField().size(); i++)
    {
        if (p.boundaryField()[i].fixesValue())
        {
            pcorrTypes[i] = fixedValueFvPatchScalarField::typeName;
        }
    }
Remember that this flux reconstruction is only necessary for complex mesh changes, that may flip faces. Just stretching meshes wont need this:

http://www.cfd-online.com/Forums/ope...tml#post222397

Regards,
Kalle
kalle is offline   Reply With Quote

Old   March 16, 2012, 22:19
Default
  #3
New Member
 
Bernardo Vieira
Join Date: Apr 2011
Location: USA
Posts: 7
Rep Power: 15
bvieira is on a distinguished road
Thank you for the reply!

I'd like to mention a few things, and I'd appreciate any comments.

1) I'm trying to model an airfoil that will be performing a pitching motion about the 1/4 chord point. My understanding is that my mesh doesn't need to deform at all, only rotate (I'm assuming the mesh motion routine will be able to translate the effects of both angle-of-attack changes, but also due to pitch rate (effective-camber effects that depend on pivot-point location)).

2) Let's say I don't need the correctPhi.H routine, should I comment it out, or it will be called only if the there are any flipping faces ?

3) About your implementation of correctPhi.H, the equation you’re using for the nonOrthogonal Mesh correction is the same as the one used in compressibleInterDyMFoam. I used the equation from rhoPimpleFoam solver under pEqn.H. Do you have comments on which one should be used ?

4) By inspecting where my error really came from, I realized that it isn't related to the correctPhi.H file. The "fvc::makeRelative(phi, U)" line gives a dimension error only after updating the mesh "mesh.update()" . If placed before it doesn't. Replacing the makeRelative command by,

Code:
fvc::makeRelative(phi, rho, U)
the error went away, but I'm not sure if that makes sense or not... Do you have any ideas?
I know that because this solver is compressible my "phi" definition is different than in an incompressible solver by a rho factor (it's using compressibleCreatePhi.H instead of CreatePhi.H)

I'd really appreciate any comments you may have on this...
bvieira is offline   Reply With Quote

Old   March 20, 2012, 10:03
Default
  #4
Senior Member
 
Karl-Johan Nogenmyr
Join Date: Mar 2009
Location: Linköping
Posts: 279
Rep Power: 21
kalle is on a distinguished road
Hi!

1,2) For such a case you could write a code that simple oscillates the complete mesh. I would guess that you can take a lot of ideas on how the AMI propeller case is done, even though I never looked at it. Just make sure you call makeAbsolute and makeRelative correctly. That approach would not flip any faces, and you can do without this correctPhi code.

3) I was using the code from interDyMFoam. Thinking more about it, is might be more relevant to look at the code in compressibleInterDyMFoam. I all cases, one should validate the approach taken by inspecting phi fields after the correctPhi.H. I did not get that far yet.

4) Have a look at the implementation of the makeRelative/Absolute. They have different methods depending on compressiblity.

Regards,
Kalle
kalle is offline   Reply With Quote

Old   March 23, 2012, 17:32
Default
  #5
New Member
 
Bernardo Vieira
Join Date: Apr 2011
Location: USA
Posts: 7
Rep Power: 15
bvieira is on a distinguished road
Thanks for the comments!

I was able to make the case run without any errors.
I've included rho in all MakeAbsolute and MakeRelative to be consistent and some other minor corrections and the solver started to work.

By inspecting the mesh during the motion, it seems that my mesh is rotating just as I desired, without any flipping or distorting faces.

But now, I'm facing some instability problems with the run. Residuals don't diverge, but I get instabilities in the field variables (p, rho) near the leading edge which propagate downstream and messes with the solution.
Thinking that this could be related to the new solver that I put together, I decided to run a case in rhoPimpleFoam with no moving mesh, just a fixed airfoil but also transient. I'm also getting some weird instabilities in the flow after some time. I'm still experimenting with relaxation factors and subiterations, but i may post a question on this soon. Again any ideas would be useful.

Thanks.
bvieira is offline   Reply With Quote

Old   April 2, 2013, 04:24
Default
  #6
Senior Member
 
HECKMANN Frédéric
Join Date: Jul 2010
Posts: 249
Rep Power: 17
fredo490 is on a distinguished road
Hello,
First I have to say that your work is really nice ! I found your topic because I also need to implement a mesh motion in rhoPimpleFoam.

I am very curious, did you succeed to solve your instability problem ? And may I ask you to share the final version of your solver ?

Thx, Fred
fredo490 is offline   Reply With Quote

Old   April 5, 2013, 10:17
Default rhoPimpleDymFoam solver
  #7
Member
 
prasant
Join Date: Jan 2013
Posts: 33
Rep Power: 13
prasant is on a distinguished road
Hello All,

Did you ever success with the rhoPimpleDymFoam Solver. I had compiled the code successfully. But while running the solver, I am getting error. Could you please help me regarding this?

Regards
Prasant.
prasant is offline   Reply With Quote

Old   April 5, 2013, 11:03
Default
  #8
Senior Member
 
HECKMANN Frédéric
Join Date: Jul 2010
Posts: 249
Rep Power: 17
fredo490 is on a distinguished road
How is your case with a simple rhoPimpleFoam ? Is your case stable with a static mesh ?

You can run a checkMesh at each step to check if the divergence come from the mesh Morphing.
fredo490 is offline   Reply With Quote

Old   March 29, 2014, 00:15
Default
  #9
Member
 
xuhe-openfoam
Join Date: Aug 2013
Location: DaLian,china
Posts: 82
Rep Power: 13
bieshuxuhe is on a distinguished road
hi !
could your rhoPimpleDyMFoam be used to simulate the water ?
or it only could be used for gas computing?

thanks

xuhe
bieshuxuhe is offline   Reply With Quote

Old   April 18, 2014, 01:39
Default discussion
  #10
Member
 
xuhe-openfoam
Join Date: Aug 2013
Location: DaLian,china
Posts: 82
Rep Power: 13
bieshuxuhe is on a distinguished road
hello everyone!
which do you think is easier :
1 developing a rhoPimpleDyMFoam from rhoPimpleFoam
2 developing a compressiblePimpleDyMFoam from PimpleDyMFoam

bieshuxuhe is offline   Reply With Quote

Old   April 18, 2014, 05:20
Default
  #11
Member
 
prasant
Join Date: Jan 2013
Posts: 33
Rep Power: 13
prasant is on a distinguished road
Hello,

The solver is already availalble in the current version OpenFOAM
You can check the compressible solvers in OpenFOAM-2.3.0
Its well working.

Regards
Prasant.



Quote:
Originally Posted by bieshuxuhe View Post
hello everyone!
which do you think is easier :
1 developing a rhoPimpleDyMFoam from rhoPimpleFoam
2 developing a compressiblePimpleDyMFoam from PimpleDyMFoam

prasant is offline   Reply With Quote

Old   April 18, 2014, 09:10
Default
  #12
Member
 
xuhe-openfoam
Join Date: Aug 2013
Location: DaLian,china
Posts: 82
Rep Power: 13
bieshuxuhe is on a distinguished road
thanks for your reply !
I have check the compressible solvers in OpenFOAM-2.3.0 , but I didn't find the solver .
http://www.openfoam.org/docs/user/st...p#x13-890003.5
could you help me?
bieshuxuhe is offline   Reply With Quote

Old   April 19, 2014, 08:37
Default
  #13
Member
 
prasant
Join Date: Jan 2013
Posts: 33
Rep Power: 13
prasant is on a distinguished road
Hello,

It is available. Download OpenFOAM-2.3.0. and See the compressible solvers.
It is located in the rhoPimpleFOAM. there is a solver called rhoPimpleDymFoam.
It was implemented from OpenFOAM-2.2.1 onwards and working fine.

The page which you are seeing in the OpenFOAM website is just for information only. We need to download and see each and every thing at every latest Release.

Since this is a open source code, don't expect more information from the site.
We need to explore.....

Regards
Prasant
prasant is offline   Reply With Quote

Old   April 19, 2014, 12:18
Default
  #14
Member
 
xuhe-openfoam
Join Date: Aug 2013
Location: DaLian,china
Posts: 82
Rep Power: 13
bieshuxuhe is on a distinguished road
thanks !
I will explore !
bieshuxuhe is offline   Reply With Quote

Old   April 26, 2014, 09:29
Default rhoPimpleDyMFoam for transonic flow
  #15
New Member
 
Christian
Join Date: Nov 2013
Posts: 7
Rep Power: 13
ChristianR1988 is on a distinguished road
Hello everybody!
I'm trying to simulate a rotating compressor-blade with rhoPimpleDyMFoam.
I use cyclicAMI and a dynamic mesh.
The solver I use is GAMG in general.
Due to the high Ma (Ma=0,95) I need to run the simulation transonic, but it doesnt work. It seems, that the pressure explodes after a little while.
First I thought its based on bad startup-conditions, so I decided to make a starting solution with transonic = no.
If I switch off the transonic-option everything works fine and I get a Solution. When I turn it back on the same problem appears again.
What can I do? Is it simply not possible or am I doing something wrong?
Thanks for your support.

Best regards, Christian.
ChristianR1988 is offline   Reply With Quote

Old   June 16, 2014, 11:34
Default rhoPimpleDymFoam.parallel solving
  #16
New Member
 
S. Javad Saharkhiz
Join Date: Sep 2013
Location: Iran
Posts: 21
Rep Power: 13
jvd.mechanic is on a distinguished road
hi every body
I'm trying to solve my case with rhoPimpleDymFoam
When I write rhoPimpleDymFoam in terminal , my case solves correctly but when I want to solve by parallel situation,it give me this error in rhoPimpleDymFoam.log :

Create time

Create mesh for time = 0

Selecting dynamicFvMesh dynamicMotionSolverFvMesh
Selecting motion solver: displacementLaplacian
Selecting motion diffusion: inverseDistance

PIMPLE: Operating solver in PISO mode

Reading thermophysical properties

Selecting thermodynamics package
{
type hePsiThermo;
mixture pureMixture;
transport sutherland;
thermo hConst;
equationOfState perfectGas;
specie specie;
energy sensibleEnthalpy;
}

Reading field U

Reading/calculating face flux field phi

Creating turbulence model

Selecting turbulence model type RASModel
Selecting RAS turbulence model kEpsilon
kEpsilonCoeffs
{
Cmu 0.09;
C1 1.44;
C2 1.92;
C3 -0.33;
sigmak 1;
sigmaEps 1.3;
Prt 1;
}

Creating field dpdt

Creating field kinetic energy K

No finite volume options present

Courant Number mean: 4.35221 max: 91.4995

Starting time loop
Courant Number mean: 0.0460965 max: 1.04908
deltaT = 5.20885e-06
Time = 5.20885e-06

DICPCG: Solving for cellDisplacementx, Initial residual = 0, Final residual = 0, No Iterations 0
DICPCG: Solving for cellDisplacementy, Initial residual = 1, Final residual = 8.12622e-09, No Iterations 102
GAMG: Solving for pcorr, Initial residual = 1, Final residual = 0.00856315, No Iterations 13
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
rhoEqn max/min : 1.50713 0.482044
smoothSolver: Solving for Ux, Initial residual = 0.0041289, Final residual = 8.5165e-08, No Iterations 2
smoothSolver: Solving for Uy, Initial residual = 0.00335382, Final residual = 1.45029e-07, No Iterations 2
smoothSolver: Solving for h, Initial residual = 0.0345707, Final residual = 7.37076e-07, No Iterations 2
GAMG: Solving for p, Initial residual = 0.00353276, Final residual = 1.39692e-08, No Iterations 1
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 0.733222, global = -0.520471, cumulative = -0.520471
rho max/min : 2 0.5
GAMG: Solving for p, Initial residual = 0.000194151, Final residual = 9.01511e-10, No Iterations 1
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 0.73311, global = -0.520391, cumulative = -1.04086
rho max/min : 2 0.5
GAMG: Solving for p, Initial residual = 2.18972e-06, Final residual = 2.5789e-10, No Iterations 1
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
time step continuity errors : sum local = 0.73311, global = -0.520391, cumulative = -1.56125
rho max/min : 2 0.5
smoothSolver: Solving for epsilon, Initial residual = 0.0295855, Final residual = 9.76084e-08, No Iterations 3
smoothSolver: Solving for k, Initial residual = 0.0882087, Final residual = 1.24819e-07, No Iterations 3
ExecutionTime = 0.25 s ClockTime = 0 s
.
.
.
Courant Number mean: 0.0453958 max: 0.998186
deltaT = 5.34283e-06
Time = 8.4506e-05

DICPCG: Solving for cellDisplacementx, Initial residual = 0, Final residual = 0, No Iterations 0
DICPCG: Solving for cellDisplacementy, Initial residual = 0.101147, Final residual = 8.99411e-09, No Iterations 90
GAMG: Solving for pcorr, Initial residual = 1, Final residual = 0.00702641, No Iterations 9
diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
rhoEqn max/min : 2.03222 0.464785
smoothSolver: Solving for Ux, Initial residual = 0.0042863, Final residual = 9.48459e-08, No Iterations 2
smoothSolver: Solving for Uy, Initial residual = 0.00329678, Final residual = 1.42144e-07, No Iterations 2
smoothSolver: Solving for h, Initial residual = 0.0230587, Final residual = 3.37243e-07, No Iterations 2
[2] #0 Foam::error: :rintStack(Foam::Ostream&) at ??:?
[2] #1 Foam::sigFpe::sigHandler(int) at ??:?
[2] #2 in "/lib/x86_64-linux-gnu/libc.so.6"
[2] #3 Foam::hePsiThermo<Foam: :siThermo, Foam: : ureMixture<Foam::sutherlandTransport<Foam::species ::thermo<Foam::hConstThermo<Foam: : erfectGas<Foam::specie> >, Foam::sensibleEnthalpy> > > >::calculate() at ??:?
[2] #4 Foam::hePsiThermo<Foam: :siThermo, Foam: : ureMixture<Foam::sutherlandTransport<Foam::species ::thermo<Foam::hConstThermo<Foam: : erfectGas<Foam::specie> >, Foam::sensibleEnthalpy> > > >::correct() at ??:?
[2] #5
[2] at ??:?
[2] #6 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
[2] #7
[2] at ??:?
*** Process received signal ***
Signal: Floating point exception (8)
Signal code: (-6)
Failing at address: 0x3e800000dd7
[ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x370b0) [0x7f71007a70b0]
[ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37) [0x7f71007a7037]
[ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x370b0) [0x7f71007a70b0]
[ 3] /opt/openfoam221/platforms/linux64GccDPOpt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThe rmoINS_9psiThermoENS_11pureMixtureINS_19sutherland TransportINS_7species6thermoINS_12hConstThermoINS_ 10perfectGasINS_6specieEEEEENS_16sensibleEnthalpyE EEEEEEE9calculateEv+0x20f) [0x7f7105b513bf]
[ 4] /opt/openfoam221/platforms/linux64GccDPOpt/lib/libfluidThermophysicalModels.so(_ZN4Foam11hePsiThe rmoINS_9psiThermoENS_11pureMixtureINS_19sutherland TransportINS_7species6thermoINS_12hConstThermoINS_ 10perfectGasINS_6specieEEEEENS_16sensibleEnthalpyE EEEEEEE7correctEv+0x32) [0x7f7105b5d9f2]
[ 5] rhoPimpleDyMFoam() [0x42a05b]
[ 6] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f7100791ea5]
[ 7] rhoPimpleDyMFoam() [0x42feb5]
*** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 2 with PID 3543 on node jvd-K53SV exited on signal 8 (Floating point exception).


I don't understand any thing of this error.Can every body help me to solve this error?
Thanks before
jvd.mechanic is offline   Reply With Quote

Old   June 16, 2014, 14:23
Default
  #17
Member
 
prasant
Join Date: Jan 2013
Posts: 33
Rep Power: 13
prasant is on a distinguished road
Hello,

As per your log file, you are not using AMI approach, correct???
Then there may be a data transfer from one processor to another processor is not doing well.
check your decomposition settings. Be sure that if you are using hierarchical decomposition means, use the partitions equally in all directions. for example, 8 processors means use (2 2 2). So that data transfer between the processors will be uniform and it will not diverge.

let me know if you are still facing the issue.

Regards
Prasanth.
prasant is offline   Reply With Quote

Old   June 17, 2014, 05:16
Default
  #18
New Member
 
S. Javad Saharkhiz
Join Date: Sep 2013
Location: Iran
Posts: 21
Rep Power: 13
jvd.mechanic is on a distinguished road
hi prasant
Thank u for your replay.
Can u please say me what is the AMI approach? I don't know about that
my method for decomposition is simple and it's my decomposeParDict :

numberOfSubdomains 6;
method simple;
simpleCoeffs
{
n ( 3 2 1 );
delta 0.001;
}
hierarchicalCoeffs
{
n ( 3 2 1 );
delta 0.001;
order xyz;
}



thanks a lot.
jvd.mechanic is offline   Reply With Quote

Old   October 9, 2014, 13:10
Default
  #19
Member
 
crixman's Avatar
 
Christian
Join Date: Apr 2014
Posts: 74
Rep Power: 12
crixman is on a distinguished road
Dear all,
I am having problems starting a rhoPimpleDyMFoam simulation.
The Error is the following

#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::hePsiThermo<Foam:siThermo, Foam:ureMixture<Foam::sutherlandTransport<Foam:: species::thermo<Foam::hConstThermo<Foam:erfectGa s<Foam::specie> >, Foam::sensibleEnthalpy> > > >::calculate() at ??:?




It appears at the beginning. Does anyone had a similar mistake? should I correct something in the source code?
I can provide the case if you want.
Thanks in advance!
crixman is offline   Reply With Quote

Old   October 9, 2014, 13:11
Default
  #20
Member
 
crixman's Avatar
 
Christian
Join Date: Apr 2014
Posts: 74
Rep Power: 12
crixman is on a distinguished road
((continuing the error message )

#4 Foam:siThermo::addfvMeshConstructorToTable<Foam: :hePsiThermo<Foam:siThermo, Foam:ureMixture<Foam::sutherlandTransport<Foam:: species::thermo<Foam::hConstThermo<Foam:erfectGa s<Foam::specie> >, Foam::sensibleEnthalpy> > > > >::New(Foam::fvMesh const&, Foam::word const&) at ??:?
#5 Foam::autoPtr<Foam:siThermo> Foam::basicThermo::New<Foam:siThermo>(Foam::fvMe sh const&, Foam::word const&) at ??:?
#6 Foam:siThermo::New(Foam::fvMesh const&, Foam::word const&) at ??:?
#7
at ??:?
#8 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#9
at ??:?
Floating point exception (core dumped)
crixman is offline   Reply With Quote

Reply

Tags
compressible flow, pitching, rhopimpledymfoam

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
A New Solver for Supersonic Combustion nakul OpenFOAM Announcements from Other Sources 19 February 27, 2024 10:44
[Other] A New Solver for Supersonic Combustion nakul OpenFOAM Community Contributions 20 February 22, 2019 10:08
thobois class engineTopoChangerMesh error Peter_600 OpenFOAM 4 August 2, 2014 10:52
problem with developing new LES solver Edison_Ge OpenFOAM 2 June 18, 2009 02:26
why the solver reject it? Anyone with experience? bearcat CFX 6 April 28, 2008 15:08


All times are GMT -4. The time now is 14:47.