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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2017-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "interfaceHeight.H"
#include "fvMesh.H"
#include "interpolation.H"
#include "IOmanip.H"
#include "lineCellFace.H"
#include "Time.H"
#include "uniformDimensionedFields.H"
#include "volFields.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace functionObjects
{
defineTypeNameAndDebug(interfaceHeight, 0);
addToRunTimeSelectionTable(functionObject, interfaceHeight, dictionary);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::functionObjects::interfaceHeight::writePositions()
{
const uniformDimensionedVectorField& g =
mesh_.lookupObject<uniformDimensionedVectorField>("g");
const vector gHat = g.value()/mag(g.value());
const volScalarField& alpha =
mesh_.lookupObject<volScalarField>(alphaName_);
autoPtr<interpolation<scalar>>
interpolator
(
interpolation<scalar>::New(interpolationScheme_, alpha)
);
if (Pstream::master())
{
writeTime(file(fileID::heightFile));
writeTime(file(fileID::positionFile));
}
forAll(locations_, li)
{
// Create a set along a ray projected in the direction of gravity
const sampledSets::lineCellFace set
(
"",
mesh_,
coordSet::axisTypeNames_[coordSet::axisType::XYZ],
locations_[li] + gHat*mesh_.bounds().mag(),
locations_[li] - gHat*mesh_.bounds().mag()
);
// Find the height of the location above the boundary
scalar hLB =
set.size()
? - gHat & (locations_[li] - set.coords().pointCoord(0))
: - vGreat;
reduce(hLB, maxOp());
// Calculate the integrals of length and length*alpha along the sampling
// line. The latter is equal to the equivalent length with alpha equal
// to one.
scalar sumLength = 0, sumLengthAlpha = 0;
for (label si = 0; si < set.size() - 1; ++ si)
{
if (set.segments()[si] != set.segments()[si+1]) continue;
const vector& p0 = set.coords().pointCoord(si);
const vector& p1 = set.coords().pointCoord(si+1);
const label c0 = set.cells()[si], c1 = set.cells()[si+1];
const label f0 = set.faces()[si], f1 = set.faces()[si+1];
if (f0 != -1 && f1 != -1) continue;
const scalar a0 = interpolator->interpolate(p0, c0, f0);
const scalar a1 = interpolator->interpolate(p1, c1, f1);
const scalar l = - gHat & (p1 - p0);
sumLength += l;
sumLengthAlpha += l*(a0 + a1)/2;
}
reduce(sumLength, sumOp());
reduce(sumLengthAlpha, sumOp());
// Write out
if (Pstream::master())
{
// Interface heights above the boundary and location
const scalar hIB =
liquid_ ? sumLengthAlpha : sumLength - sumLengthAlpha;
const scalar hIL = hIB - hLB;
// Position of the interface
const point p = locations_[li] - gHat*hIL;
const Foam::Omanip<int> w = valueWidth(1);
file(fileID::heightFile) << w << hIB << w << hIL;
file(fileID::positionFile) << '(' << w << p.x() << w << p.y()
<< valueWidth() << p.z() << ") ";
}
}
if (Pstream::master())
{
file(fileID::heightFile).endl();
file(fileID::positionFile).endl();
}
}
// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
void Foam::functionObjects::interfaceHeight::writeFileHeader(const label i)
{
forAll(locations_, li)
{
writeHeaderValue
(
file(i),
"Location " + Foam::name(li),
locations_[li]
);
}
switch (fileID(i))
{
case fileID::heightFile:
writeHeaderValue
(
file(i),
"hB",
"Interface height above the boundary"
);
writeHeaderValue
(
file(i),
"hL",
"Interface height above the location"
);
break;
case fileID::positionFile:
writeHeaderValue(file(i), "p", "Interface position");
break;
}
const Foam::Omanip<int> w = valueWidth(1);
writeCommented(file(i), "Location");
forAll(locations_, li)
{
switch (fileID(i))
{
case fileID::heightFile:
file(i) << w << li << w << ' ';
break;
case fileID::positionFile:
file(i) << w << li << w << ' ' << w << ' ' << " ";
break;
}
}
file(i).endl();
writeCommented(file(i), "Time");
forAll(locations_, li)
{
switch (fileID(i))
{
case fileID::heightFile:
file(i) << w << "hB" << w << "hL";
break;
case fileID::positionFile:
file(i) << w << "p" << w << ' ' << w << ' ' << " ";
break;
}
}
file(i).endl();
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::functionObjects::interfaceHeight::interfaceHeight
(
const word& name,
const Time& runTime,
const dictionary& dict
)
:
fvMeshFunctionObject(name, runTime, dict),
logFiles(mesh_, name),
alphaName_("alpha"),
liquid_(true),
locations_(),
interpolationScheme_("cellPoint")
{
read(dict);
}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::functionObjects::interfaceHeight::~interfaceHeight()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool Foam::functionObjects::interfaceHeight::read(const dictionary& dict)
{
fvMeshFunctionObject::read(dict);
dict.readIfPresent("alpha", alphaName_);
dict.readIfPresent("liquid", liquid_);
dict.lookup("locations") >> locations_;
dict.readIfPresent("interpolationScheme", interpolationScheme_);
resetNames({"height", "position"});
return true;
}
Foam::wordList Foam::functionObjects::interfaceHeight::fields() const
{
return wordList(alphaName_);
}
bool Foam::functionObjects::interfaceHeight::execute()
{
return true;
}
bool Foam::functionObjects::interfaceHeight::end()
{
return true;
}
bool Foam::functionObjects::interfaceHeight::write()
{
logFiles::write();
writePositions();
return true;
}
// ************************************************************************* //
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