mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-11-28 03:28:01 +00:00
478 lines
12 KiB
C
478 lines
12 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright (C) 2011-2012 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 "uniformSet.H"
|
|
#include "meshSearch.H"
|
|
#include "DynamicList.H"
|
|
#include "polyMesh.H"
|
|
|
|
#include "addToRunTimeSelectionTable.H"
|
|
|
|
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
|
|
|
|
namespace Foam
|
|
{
|
|
defineTypeNameAndDebug(uniformSet, 0);
|
|
addToRunTimeSelectionTable(sampledSet, uniformSet, word);
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
|
|
|
|
bool Foam::uniformSet::nextSample
|
|
(
|
|
const point& currentPt,
|
|
const vector& offset,
|
|
const scalar smallDist,
|
|
point& samplePt,
|
|
label& sampleI
|
|
) const
|
|
{
|
|
bool pointFound = false;
|
|
|
|
const vector normOffset = offset/mag(offset);
|
|
|
|
samplePt += offset;
|
|
sampleI++;
|
|
|
|
for (; sampleI < nPoints_; sampleI++)
|
|
{
|
|
scalar s = (samplePt - currentPt) & normOffset;
|
|
|
|
if (s > -smallDist)
|
|
{
|
|
// samplePt is close to or beyond currentPt -> use it
|
|
pointFound = true;
|
|
|
|
break;
|
|
}
|
|
samplePt += offset;
|
|
}
|
|
|
|
return pointFound;
|
|
}
|
|
|
|
|
|
bool Foam::uniformSet::trackToBoundary
|
|
(
|
|
passiveParticle& singleParticle,
|
|
point& samplePt,
|
|
label& sampleI,
|
|
DynamicList<point>& samplingPts,
|
|
DynamicList<label>& samplingCells,
|
|
DynamicList<label>& samplingFaces,
|
|
DynamicList<scalar>& samplingCurveDist
|
|
) const
|
|
{
|
|
// distance vector between sampling points
|
|
const vector offset = (end_ - start_)/(nPoints_ - 1);
|
|
const vector smallVec = tol*offset;
|
|
const scalar smallDist = mag(smallVec);
|
|
|
|
// Alias
|
|
const point& trackPt = singleParticle.position();
|
|
|
|
passiveParticleCloud particleCloud(mesh());
|
|
particle::TrackingData<passiveParticleCloud> trackData(particleCloud);
|
|
|
|
while(true)
|
|
{
|
|
// Find next samplePt on/after trackPt. Update samplePt, sampleI
|
|
if (!nextSample(trackPt, offset, smallDist, samplePt, sampleI))
|
|
{
|
|
// no more samples.
|
|
if (debug)
|
|
{
|
|
Info<< "trackToBoundary : Reached end : samplePt now:"
|
|
<< samplePt << " sampleI now:" << sampleI << endl;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (mag(samplePt - trackPt) < smallDist)
|
|
{
|
|
// trackPt corresponds with samplePt. Store and use next samplePt
|
|
if (debug)
|
|
{
|
|
Info<< "trackToBoundary : samplePt corresponds to trackPt : "
|
|
<< " trackPt:" << trackPt << " samplePt:" << samplePt
|
|
<< endl;
|
|
}
|
|
|
|
samplingPts.append(trackPt);
|
|
samplingCells.append(singleParticle.cell());
|
|
samplingFaces.append(-1);
|
|
samplingCurveDist.append(mag(trackPt - start_));
|
|
|
|
// go to next samplePt
|
|
if (!nextSample(trackPt, offset, smallDist, samplePt, sampleI))
|
|
{
|
|
// no more samples.
|
|
if (debug)
|
|
{
|
|
Info<< "trackToBoundary : Reached end : "
|
|
<< " samplePt now:" << samplePt
|
|
<< " sampleI now:" << sampleI
|
|
<< endl;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
if (debug)
|
|
{
|
|
Info<< "Searching along trajectory from "
|
|
<< " trackPt:" << trackPt
|
|
<< " trackCellI:" << singleParticle.cell()
|
|
<< " to:" << samplePt << endl;
|
|
}
|
|
|
|
point oldPos = trackPt;
|
|
label facei = -1;
|
|
do
|
|
{
|
|
singleParticle.stepFraction() = 0;
|
|
singleParticle.track(samplePt, trackData);
|
|
|
|
if (debug)
|
|
{
|
|
Info<< "Result of tracking "
|
|
<< " trackPt:" << trackPt
|
|
<< " trackCellI:" << singleParticle.cell()
|
|
<< " trackFaceI:" << singleParticle.face()
|
|
<< " onBoundary:" << singleParticle.onBoundary()
|
|
<< " samplePt:" << samplePt
|
|
<< " smallDist:" << smallDist
|
|
<< endl;
|
|
}
|
|
}
|
|
while
|
|
(
|
|
!singleParticle.onBoundary()
|
|
&& (mag(trackPt - oldPos) < smallDist)
|
|
);
|
|
|
|
if (singleParticle.onBoundary())
|
|
{
|
|
//Info<< "trackToBoundary : reached boundary" << endl;
|
|
if (mag(trackPt - samplePt) < smallDist)
|
|
{
|
|
//Info<< "trackToBoundary : boundary is also sampling point"
|
|
// << endl;
|
|
// Reached samplePt on boundary
|
|
samplingPts.append(trackPt);
|
|
samplingCells.append(singleParticle.cell());
|
|
samplingFaces.append(facei);
|
|
samplingCurveDist.append(mag(trackPt - start_));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
//Info<< "trackToBoundary : reached internal sampling point" << endl;
|
|
// Reached samplePt in cell or on internal face
|
|
samplingPts.append(trackPt);
|
|
samplingCells.append(singleParticle.cell());
|
|
samplingFaces.append(-1);
|
|
samplingCurveDist.append(mag(trackPt - start_));
|
|
|
|
// go to next samplePt
|
|
}
|
|
}
|
|
|
|
|
|
void Foam::uniformSet::calcSamples
|
|
(
|
|
DynamicList<point>& samplingPts,
|
|
DynamicList<label>& samplingCells,
|
|
DynamicList<label>& samplingFaces,
|
|
DynamicList<label>& samplingSegments,
|
|
DynamicList<scalar>& samplingCurveDist
|
|
) const
|
|
{
|
|
// distance vector between sampling points
|
|
if ((nPoints_ < 2) || (mag(end_ - start_) < SMALL))
|
|
{
|
|
FatalErrorIn("uniformSet::calcSamples()")
|
|
<< "Incorrect sample specification. Either too few points or"
|
|
<< " start equals end point." << endl
|
|
<< "nPoints:" << nPoints_
|
|
<< " start:" << start_
|
|
<< " end:" << end_
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
const vector offset = (end_ - start_)/(nPoints_ - 1);
|
|
const vector normOffset = offset/mag(offset);
|
|
const vector smallVec = tol*offset;
|
|
const scalar smallDist = mag(smallVec);
|
|
|
|
// Force calculation of minimum-tet decomposition.
|
|
(void) mesh().tetBasePtIs();
|
|
|
|
// Get all boundary intersections
|
|
List<pointIndexHit> bHits = searchEngine().intersections
|
|
(
|
|
start_ - smallVec,
|
|
end_ + smallVec
|
|
);
|
|
|
|
point bPoint(GREAT, GREAT, GREAT);
|
|
label bFaceI = -1;
|
|
|
|
if (bHits.size())
|
|
{
|
|
bPoint = bHits[0].hitPoint();
|
|
bFaceI = bHits[0].index();
|
|
}
|
|
|
|
// Get first tracking point. Use bPoint, bFaceI if provided.
|
|
|
|
point trackPt;
|
|
label trackCellI = -1;
|
|
label trackFaceI = -1;
|
|
|
|
bool isSample =
|
|
getTrackingPoint
|
|
(
|
|
offset,
|
|
start_,
|
|
bPoint,
|
|
bFaceI,
|
|
|
|
trackPt,
|
|
trackCellI,
|
|
trackFaceI
|
|
);
|
|
|
|
if (trackCellI == -1)
|
|
{
|
|
// Line start_ - end_ does not intersect domain at all.
|
|
// (or is along edge)
|
|
// Set points and cell/face labels to empty lists
|
|
|
|
return;
|
|
}
|
|
|
|
if (isSample)
|
|
{
|
|
samplingPts.append(start_);
|
|
samplingCells.append(trackCellI);
|
|
samplingFaces.append(trackFaceI);
|
|
samplingCurveDist.append(0.0);
|
|
}
|
|
|
|
//
|
|
// Track until hit end of all boundary intersections
|
|
//
|
|
|
|
// current segment number
|
|
label segmentI = 0;
|
|
|
|
// starting index of current segment in samplePts
|
|
label startSegmentI = 0;
|
|
|
|
label sampleI = 0;
|
|
point samplePt = start_;
|
|
|
|
// index in bHits; current boundary intersection
|
|
label bHitI = 1;
|
|
|
|
while(true)
|
|
{
|
|
// Initialize tracking starting from trackPt
|
|
passiveParticle singleParticle(mesh(), trackPt, trackCellI);
|
|
|
|
bool reachedBoundary = trackToBoundary
|
|
(
|
|
singleParticle,
|
|
samplePt,
|
|
sampleI,
|
|
samplingPts,
|
|
samplingCells,
|
|
samplingFaces,
|
|
samplingCurveDist
|
|
);
|
|
|
|
// fill sampleSegments
|
|
for (label i = samplingPts.size() - 1; i >= startSegmentI; --i)
|
|
{
|
|
samplingSegments.append(segmentI);
|
|
}
|
|
|
|
|
|
if (!reachedBoundary)
|
|
{
|
|
if (debug)
|
|
{
|
|
Info<< "calcSamples : Reached end of samples: "
|
|
<< " samplePt now:" << samplePt
|
|
<< " sampleI now:" << sampleI
|
|
<< endl;
|
|
}
|
|
break;
|
|
}
|
|
|
|
|
|
bool foundValidB = false;
|
|
|
|
while (bHitI < bHits.size())
|
|
{
|
|
scalar dist =
|
|
(bHits[bHitI].hitPoint() - singleParticle.position())
|
|
& normOffset;
|
|
|
|
if (debug)
|
|
{
|
|
Info<< "Finding next boundary : "
|
|
<< "bPoint:" << bHits[bHitI].hitPoint()
|
|
<< " tracking:" << singleParticle.position()
|
|
<< " dist:" << dist
|
|
<< endl;
|
|
}
|
|
|
|
if (dist > smallDist)
|
|
{
|
|
// hitpoint is past tracking position
|
|
foundValidB = true;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
bHitI++;
|
|
}
|
|
}
|
|
|
|
if (!foundValidB)
|
|
{
|
|
// No valid boundary intersection found beyond tracking position
|
|
break;
|
|
}
|
|
|
|
// Update starting point for tracking
|
|
trackFaceI = bFaceI;
|
|
trackPt = pushIn(bPoint, trackFaceI);
|
|
trackCellI = getBoundaryCell(trackFaceI);
|
|
|
|
segmentI++;
|
|
|
|
startSegmentI = samplingPts.size();
|
|
}
|
|
}
|
|
|
|
|
|
void Foam::uniformSet::genSamples()
|
|
{
|
|
// Storage for sample points
|
|
DynamicList<point> samplingPts;
|
|
DynamicList<label> samplingCells;
|
|
DynamicList<label> samplingFaces;
|
|
DynamicList<label> samplingSegments;
|
|
DynamicList<scalar> samplingCurveDist;
|
|
|
|
calcSamples
|
|
(
|
|
samplingPts,
|
|
samplingCells,
|
|
samplingFaces,
|
|
samplingSegments,
|
|
samplingCurveDist
|
|
);
|
|
|
|
samplingPts.shrink();
|
|
samplingCells.shrink();
|
|
samplingFaces.shrink();
|
|
samplingSegments.shrink();
|
|
samplingCurveDist.shrink();
|
|
|
|
setSamples
|
|
(
|
|
samplingPts,
|
|
samplingCells,
|
|
samplingFaces,
|
|
samplingSegments,
|
|
samplingCurveDist
|
|
);
|
|
}
|
|
|
|
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
|
|
|
Foam::uniformSet::uniformSet
|
|
(
|
|
const word& name,
|
|
const polyMesh& mesh,
|
|
const meshSearch& searchEngine,
|
|
const word& axis,
|
|
const point& start,
|
|
const point& end,
|
|
const label nPoints
|
|
)
|
|
:
|
|
sampledSet(name, mesh, searchEngine, axis),
|
|
start_(start),
|
|
end_(end),
|
|
nPoints_(nPoints)
|
|
{
|
|
genSamples();
|
|
|
|
if (debug)
|
|
{
|
|
write(Info);
|
|
}
|
|
}
|
|
|
|
|
|
Foam::uniformSet::uniformSet
|
|
(
|
|
const word& name,
|
|
const polyMesh& mesh,
|
|
const meshSearch& searchEngine,
|
|
const dictionary& dict
|
|
)
|
|
:
|
|
sampledSet(name, mesh, searchEngine, dict),
|
|
start_(dict.lookup("start")),
|
|
end_(dict.lookup("end")),
|
|
nPoints_(readLabel(dict.lookup("nPoints")))
|
|
{
|
|
genSamples();
|
|
|
|
if (debug)
|
|
{
|
|
write(Info);
|
|
}
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
|
|
|
|
Foam::uniformSet::~uniformSet()
|
|
{}
|
|
|
|
|
|
// ************************************************************************* //
|