| angatri_14 |
August 18, 2020 08:07 |
PROBLEMS DEFINING A LIST USING #CODESTREAM !! Help please !!
Dear foamers,
I'm trying to change the initial condition of my case using #codeStream procedure after some time steps. The idea is to add a modelled vortex after some iterations. However, I'm not able to overlap both fields, the vortex and the solution from the last time step. The problem is that I'm not a C++ user, so I don't know how to define a list (scalarField or vectorField) inside the #codeStream directive using the results from the last time step.
I have tried to use the #include directive creating a file with the list for both pressure and velocity results from the last time step, but it did not work. Also, I have seen the different list constructors but I think that anyone fits with my case (using the list presented in p and U file for the last time step).
This is my code for the initial conditions using #codeStream :
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1912 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
location "0.22";
object p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 2 -2 0 0 0 0];
internalField #codeStream
{
codeInclude
#{
#include "fvMesh.H"
#include "fvCFD.H"
#};
codeOptions
#{
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude
#};
codeLibs
#{
-lmeshTools \
-lfiniteVolume
#};
code
#{
const IOdictionary& d = static_cast<const IOdictionary&>(dict);
const fvMesh& mesh = refCast<const fvMesh>(d.db());
scalarField p(mesh.nCells(), 0.);
scalar Cv = 0.0412; // Vortex strenght
scalar Rv = 0.05; // Vortex core radius
scalar rho_inf = 1.225; //Ambient density [kg/m^3]
scalar x_v =0.1; // X vortex-centre position [m]
scalar y_v = 0; // Y vortex-centre position [m]
forAll(p, i)
{
const scalar x = mesh.C()[i][0];
const scalar y = mesh.C()[i][1];
//Here I want to define a scalarFied with the pressure values from the last time step called list_pressure
p[i] = -rho_inf/2*pow(Cv/Rv, 2)*exp(-((pow(x-x_v,2))+(pow(y-y_v,2)))/(pow(Rv,2)))+list_pressure[i];
}
//void Foam::Field<Type>::writeEntry(const word& keyword, Ostream& os) const
p.writeEntry("", os);
#};
};
boundaryField
{
inlet
{
type zeroGradient;
}
outlet
{
type fixedValue;
value uniform 0;
}
upperWall
{
type zeroGradient;
}
lowerWall
{
type zeroGradient;
}
frontAndBack
{
type empty;
}
}
// ************************************************************************* //
and the file "initialConditions" with the pressure field for the last time step (the list I have to use in #codeStream)
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1912 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
location "0.22";
object p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 2 -2 0 0 0 0];
internalField #codeStream
{
codeInclude
#{
#include "fvMesh.H"
#include "fvCFD.H"
#};
codeOptions
#{
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude
#};
codeLibs
#{
-lmeshTools \
-lfiniteVolume
#};
code
#{
const IOdictionary& d = static_cast<const IOdictionary&>(dict);
const fvMesh& mesh = refCast<const fvMesh>(d.db());
scalarField p(mesh.nCells(), 0.);
scalar Cv = 0.0412; // Vortex strenght
scalar Rv = 0.05; // Vortex core radius
scalar rho_inf = 1.225; //Ambient density [kg/m^3]
scalar x_v =0.1; // X vortex-centre position [m]
scalar y_v = 0; // Y vortex-centre position [m]
forAll(p, i)
{
const scalar x = mesh.C()[i][0];
const scalar y = mesh.C()[i][1];
p[i] = -rho_inf/2*pow(Cv/Rv, 2)*exp(-((pow(x-x_v,2))+(pow(y-y_v,2)))/(pow(Rv,2)));
}
//void Foam::Field<Type>::writeEntry(const word& keyword, Ostream& os) const
p.writeEntry("", os);
#};
};
boundaryField
{
inlet
{
type zeroGradient;
}
outlet
{
type fixedValue;
value uniform 0;
}
upperWall
{
type zeroGradient;
}
lowerWall
{
type zeroGradient;
}
frontAndBack
{
type empty;
}
}
// ************************************************************************* //
Any help is useful and really appreciated !! Thanks you all. |
