| Utkan |
November 22, 2020 11:00 |
Error: "Source airToporous defined for field h but never used"
I am a newbie in OpenFOAM and I desperately need any type of help or guidance in my situation. I want to simulate the forced cooling of a radiator with air by a fan. I am working with the heatExchanger case under chtMultiRegionFoam. However, the amount of fin/capillary details of this radiator makes it impossible to mesh with a commercial meshing tool. Hence, I'm going for the porosity approach. Water is considered a porous fluid of which the porous parameters are given in the fvOptions. I will include fvOptions of both regions below. The momentum source term due to the porosity blockage is I think already being added correctly, but from what I understood, I have to find a way to add the energy source term to get rid of the warning. But I don't know how to do that. I would really appreciate any help overcoming this error. Thank you in advance.
This is the error that I get, when I try to solve the case
Code:
Solving for fluid region air
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
DILUPBiCGStab: Solving for Ux, Initial residual = 0.474622, Final residual = 0.00170632, No Iterations 1
DILUPBiCGStab: Solving for Uy, Initial residual = 0.403169, Final residual = 0.00159073, No Iterations 1
DILUPBiCGStab: Solving for Uz, Initial residual = 0.573588, Final residual = 0.00181622, No Iterations 1
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
DILUPBiCGStab: Solving for e, Initial residual = 0.00898525, Final residual = 5.40341e-05, No Iterations 1
Min/max T:292.92 325.612
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
GAMG: Solving for p_rgh, Initial residual = 0.441588, Final residual = 0.00311991, No Iterations 12
time step continuity errors : sum local = 0.000507967, global = 3.8117e-05, cumulative = 3.8117e-05
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
DILUPBiCGStab: Solving for epsilon, Initial residual = 0.0690558, Final residual = 0.000399087, No Iterations 1
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
--> FOAM Warning :
From function virtual void Foam::fv::option::checkApplied() const
in file cfdTools/general/fvOptions/fvOption.C at line 125
Source airToporous defined for field h but never used
the fvOptions for both regions is as follows;
For air region;
Code:
/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 8
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object fvOptions;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
airToporous
{
type constantHeatTransfer;
interpolationMethod cellVolumeWeight;
nbrRegionName porous;
master false;
nbrModel porousToair;
fields (h);
semiImplicit no;
}
porosityBlockage
{
type interRegionExplicitPorositySource;
interRegionExplicitPorositySourceCoeffs
{
interpolationMethod cellVolumeWeight;
nbrRegionName porous;
type DarcyForchheimer;
d (-1000 -1000 1e4);
f (0 0 0);
coordinateSystem
{
type cartesian;
origin (0 0 0);
coordinateRotation
{
type axesRotation;
e1 (0 1 0);
e2 (0 0 1);
}
}
}
}
// ************************************************************************* //
For the porous region;
Code:
/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 8
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object fvOptions;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
porousToair
{
type constantHeatTransfer;
interpolationMethod cellVolumeWeight;
nbrRegionName air;
master true;
nbrModel airToporous;
fields (e);
semiImplicit no;
}
// ************************************************************************* //
|
