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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2018 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 "block.H"
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
#define w0 w[0][i]
#define w1 w[1][i]
#define w2 w[2][i]
#define w3 w[3][i]
#define w4 w[4][j]
#define w5 w[5][j]
#define w6 w[6][j]
#define w7 w[7][j]
#define w8 w[8][k]
#define w9 w[9][k]
#define w10 w[10][k]
#define w11 w[11][k]
void Foam::block::createPoints()
{
// Set local variables for mesh specification
const label ni = density().x();
const label nj = density().y();
const label nk = density().z();
const point& p000 = blockPoint(0);
const point& p100 = blockPoint(1);
const point& p110 = blockPoint(2);
const point& p010 = blockPoint(3);
const point& p001 = blockPoint(4);
const point& p101 = blockPoint(5);
const point& p111 = blockPoint(6);
const point& p011 = blockPoint(7);
// List of edge point and weighting factors
pointField p[12];
scalarList w[12];
label nCurvedEdges = edgesPointsWeights(p, w);
points_.setSize(nPoints());
points_[pointLabel(0, 0, 0)] = p000;
points_[pointLabel(ni, 0, 0)] = p100;
points_[pointLabel(ni, nj, 0)] = p110;
points_[pointLabel(0, nj, 0)] = p010;
points_[pointLabel(0, 0, nk)] = p001;
points_[pointLabel(ni, 0, nk)] = p101;
points_[pointLabel(ni, nj, nk)] = p111;
points_[pointLabel(0, nj, nk)] = p011;
for (label k=0; k<=nk; k++)
{
for (label j=0; j<=nj; j++)
{
for (label i=0; i<=ni; i++)
{
// Skip block vertices
if (vertex(i, j, k)) continue;
const label vijk = pointLabel(i, j, k);
// Calculate the weighting factors for all edges
// x-direction
scalar wx1 = (1 - w0)*(1 - w4)*(1 - w8) + w0*(1 - w5)*(1 - w9);
scalar wx2 = (1 - w1)*w4*(1 - w11) + w1*w5*(1 - w10);
scalar wx3 = (1 - w2)*w7*w11 + w2*w6*w10;
scalar wx4 = (1 - w3)*(1 - w7)*w8 + w3*(1 - w6)*w9;
const scalar sumWx = wx1 + wx2 + wx3 + wx4;
wx1 /= sumWx;
wx2 /= sumWx;
wx3 /= sumWx;
wx4 /= sumWx;
// y-direction
scalar wy1 = (1 - w4)*(1 - w0)*(1 - w8) + w4*(1 - w1)*(1 - w11);
scalar wy2 = (1 - w5)*w0*(1 - w9) + w5*w1*(1 - w10);
scalar wy3 = (1 - w6)*w3*w9 + w6*w2*w10;
scalar wy4 = (1 - w7)*(1 - w3)*w8 + w7*(1 - w2)*w11;
const scalar sumWy = wy1 + wy2 + wy3 + wy4;
wy1 /= sumWy;
wy2 /= sumWy;
wy3 /= sumWy;
wy4 /= sumWy;
// z-direction
scalar wz1 = (1 - w8)*(1 - w0)*(1 - w4) + w8*(1 - w3)*(1 - w7);
scalar wz2 = (1 - w9)*w0*(1 - w5) + w9*w3*(1 - w6);
scalar wz3 = (1 - w10)*w1*w5 + w10*w2*w6;
scalar wz4 = (1 - w11)*(1 - w1)*w4 + w11*(1 - w2)*w7;
const scalar sumWz = wz1 + wz2 + wz3 + wz4;
wz1 /= sumWz;
wz2 /= sumWz;
wz3 /= sumWz;
wz4 /= sumWz;
// Points on straight edges
const vector edgex1 = p000 + (p100 - p000)*w0;
const vector edgex2 = p010 + (p110 - p010)*w1;
const vector edgex3 = p011 + (p111 - p011)*w2;
const vector edgex4 = p001 + (p101 - p001)*w3;
const vector edgey1 = p000 + (p010 - p000)*w4;
const vector edgey2 = p100 + (p110 - p100)*w5;
const vector edgey3 = p101 + (p111 - p101)*w6;
const vector edgey4 = p001 + (p011 - p001)*w7;
const vector edgez1 = p000 + (p001 - p000)*w8;
const vector edgez2 = p100 + (p101 - p100)*w9;
const vector edgez3 = p110 + (p111 - p110)*w10;
const vector edgez4 = p010 + (p011 - p010)*w11;
// Add the contributions
points_[vijk] =
(
wx1*edgex1 + wx2*edgex2 + wx3*edgex3 + wx4*edgex4
+ wy1*edgey1 + wy2*edgey2 + wy3*edgey3 + wy4*edgey4
+ wz1*edgez1 + wz2*edgez2 + wz3*edgez3 + wz4*edgez4
)/3;
// Apply curved-edge correction if block has curved edges
if (nCurvedEdges)
{
// Calculate the correction vectors
const vector corx1 = wx1*(p[0][i] - edgex1);
const vector corx2 = wx2*(p[1][i] - edgex2);
const vector corx3 = wx3*(p[2][i] - edgex3);
const vector corx4 = wx4*(p[3][i] - edgex4);
const vector cory1 = wy1*(p[4][j] - edgey1);
const vector cory2 = wy2*(p[5][j] - edgey2);
const vector cory3 = wy3*(p[6][j] - edgey3);
const vector cory4 = wy4*(p[7][j] - edgey4);
const vector corz1 = wz1*(p[8][k] - edgez1);
const vector corz2 = wz2*(p[9][k] - edgez2);
const vector corz3 = wz3*(p[10][k] - edgez3);
const vector corz4 = wz4*(p[11][k] - edgez4);
points_[vijk] +=
(
corx1 + corx2 + corx3 + corx4
+ cory1 + cory2 + cory3 + cory4
+ corz1 + corz2 + corz3 + corz4
);
}
}
}
}
if (!nCurvedFaces()) return;
// Apply curvature correction to face points
FixedList<pointField, 6> facePoints(this->facePoints(points_));
correctFacePoints(facePoints);
// Loop over points and apply the correction from the from the i-faces
for (label ii=0; ii<=ni; ii++)
{
// Process the points on the curved faces last
label i = (ii + 1)%(ni + 1);
for (label j=0; j<=nj; j++)
{
for (label k=0; k<=nk; k++)
{
// Skip non-curved faces and edges
if (flatFaceOrEdge(i, j, k)) continue;
const label vijk = pointLabel(i, j, k);
scalar wf0 =
(
(1 - w0)*(1 - w4)*(1 - w8)
+ (1 - w1)*w4*(1 - w11)
+ (1 - w2)*w7*w11
+ (1 - w3)*(1 - w7)*w8
);
scalar wf1 =
(
w0*(1 - w5)*(1 - w9)
+ w1*w5*(1 - w10)
+ w2*w5*w10
+ w3*(1 - w6)*w9
);
const scalar sumWf = wf0 + wf1;
wf0 /= sumWf;
wf1 /= sumWf;
points_[vijk] +=
(
wf0
*(
facePoints[0][facePointLabel(0, j, k)]
- points_[pointLabel(0, j, k)]
)
+ wf1
*(
facePoints[1][facePointLabel(1, j, k)]
- points_[pointLabel(ni, j, k)]
)
);
}
}
}
// Loop over points and apply the correction from the from the j-faces
for (label jj=0; jj<=nj; jj++)
{
// Process the points on the curved faces last
label j = (jj + 1)%(nj + 1);
for (label i=0; i<=ni; i++)
{
for (label k=0; k<=nk; k++)
{
// Skip flat faces and edges
if (flatFaceOrEdge(i, j, k)) continue;
const label vijk = pointLabel(i, j, k);
scalar wf2 =
(
(1 - w4)*(1 - w1)*(1 - w8)
+ (1 - w5)*w0*(1 - w9)
+ (1 - w6)*w3*w9
+ (1 - w7)*(1 - w3)*w8
);
scalar wf3 =
(
w4*(1 - w1)*(1 - w11)
+ w5*w1*(1 - w10)
+ w6*w2*w10
+ w7*(1 - w2)*w11
);
const scalar sumWf = wf2 + wf3;
wf2 /= sumWf;
wf3 /= sumWf;
points_[vijk] +=
(
wf2
*(
facePoints[2][facePointLabel(2, i, k)]
- points_[pointLabel(i, 0, k)]
)
+ wf3
*(
facePoints[3][facePointLabel(3, i, k)]
- points_[pointLabel(i, nj, k)]
)
);
}
}
}
// Loop over points and apply the correction from the from the k-faces
for (label kk=0; kk<=nk; kk++)
{
// Process the points on the curved faces last
label k = (kk + 1)%(nk + 1);
for (label i=0; i<=ni; i++)
{
for (label j=0; j<=nj; j++)
{
// Skip flat faces and edges
if (flatFaceOrEdge(i, j, k)) continue;
const label vijk = pointLabel(i, j, k);
scalar wf4 =
(
(1 - w8)*(1 - w0)*(1 - w4)
+ (1 - w9)*w0*(1 - w5)
+ (1 - w10)*w1*w5
+ (1 - w11)*(1 - w1)*w4
);
scalar wf5 =
(
w8*(1 - w3)*(1 - w7)
+ w9*w3*(1 - w6)
+ w10*w2*w6
+ w11*(1 - w2)*w7
);
const scalar sumWf = wf4 + wf5;
wf4 /= sumWf;
wf5 /= sumWf;
points_[vijk] +=
(
wf4
*(
facePoints[4][facePointLabel(4, i, j)]
- points_[pointLabel(i, j, 0)]
)
+ wf5
*(
facePoints[5][facePointLabel(5, i, j)]
- points_[pointLabel(i, j, nk)]
)
);
}
}
}
}
Foam::List<Foam::FixedList<Foam::label, 8>> Foam::block::cells() const
{
const label ni = density().x();
const label nj = density().y();
const label nk = density().z();
List<FixedList<label, 8>> cells(nCells());
label celli = 0;
for (label k=0; k<nk; k++)
{
for (label j=0; j<nj; j++)
{
for (label i=0; i<ni; i++)
{
cells[celli][0] = pointLabel(i, j, k);
cells[celli][1] = pointLabel(i+1, j, k);
cells[celli][2] = pointLabel(i+1, j+1, k);
cells[celli][3] = pointLabel(i, j+1, k);
cells[celli][4] = pointLabel(i, j, k+1);
cells[celli][5] = pointLabel(i+1, j, k+1);
cells[celli][6] = pointLabel(i+1, j+1, k+1);
cells[celli][7] = pointLabel(i, j+1, k+1);
celli++;
}
}
}
return cells;
}
void Foam::block::createBoundary()
{
const label ni = density().x();
const label nj = density().y();
const label nk = density().z();
label patchi = 0;
label facei = 0;
// x-direction
// x-min
boundaryPatches_[patchi].setSize(nj*nk);
for (label k=0; k<nk; k++)
{
for (label j=0; j<nj; j++)
{
boundaryPatches_[patchi][facei][0] = pointLabel(0, j, k);
boundaryPatches_[patchi][facei][1] = pointLabel(0, j, k+1);
boundaryPatches_[patchi][facei][2] = pointLabel(0, j+1, k+1);
boundaryPatches_[patchi][facei][3] = pointLabel(0, j+1, k);
facei++;
}
}
// x-max
patchi++;
facei = 0;
boundaryPatches_[patchi].setSize(nj*nk);
for (label k=0; k<nk; k++)
{
for (label j=0; j<nj; j++)
{
boundaryPatches_[patchi][facei][0] = pointLabel(ni, j, k);
boundaryPatches_[patchi][facei][1] = pointLabel(ni, j+1, k);
boundaryPatches_[patchi][facei][2] = pointLabel(ni, j+1, k+1);
boundaryPatches_[patchi][facei][3] = pointLabel(ni, j, k+1);
facei++;
}
}
// y-direction
// y-min
patchi++;
facei = 0;
boundaryPatches_[patchi].setSize(ni*nk);
for (label i=0; i<ni; i++)
{
for (label k=0; k<nk; k++)
{
boundaryPatches_[patchi][facei][0] = pointLabel(i, 0, k);
boundaryPatches_[patchi][facei][1] = pointLabel(i+1, 0, k);
boundaryPatches_[patchi][facei][2] = pointLabel(i+1, 0, k+1);
boundaryPatches_[patchi][facei][3] = pointLabel(i, 0, k+1);
facei++;
}
}
// y-max
patchi++;
facei = 0;
boundaryPatches_[patchi].setSize(ni*nk);
for (label i=0; i<ni; i++)
{
for (label k=0; k<nk; k++)
{
boundaryPatches_[patchi][facei][0] = pointLabel(i, nj, k);
boundaryPatches_[patchi][facei][1] = pointLabel(i, nj, k+1);
boundaryPatches_[patchi][facei][2] = pointLabel(i+1, nj, k+1);
boundaryPatches_[patchi][facei][3] = pointLabel(i+1, nj, k);
facei++;
}
}
// z-direction
// z-min
patchi++;
facei = 0;
boundaryPatches_[patchi].setSize(ni*nj);
for (label i=0; i<ni; i++)
{
for (label j=0; j<nj; j++)
{
boundaryPatches_[patchi][facei][0] = pointLabel(i, j, 0);
boundaryPatches_[patchi][facei][1] = pointLabel(i, j+1, 0);
boundaryPatches_[patchi][facei][2] = pointLabel(i+1, j+1, 0);
boundaryPatches_[patchi][facei][3] = pointLabel(i+1, j, 0);
facei++;
}
}
// z-max
patchi++;
facei = 0;
boundaryPatches_[patchi].setSize(ni*nj);
for (label i=0; i<ni; i++)
{
for (label j=0; j<nj; j++)
{
boundaryPatches_[patchi][facei][0] = pointLabel(i, j, nk);
boundaryPatches_[patchi][facei][1] = pointLabel(i+1, j, nk);
boundaryPatches_[patchi][facei][2] = pointLabel(i+1, j+1, nk);
boundaryPatches_[patchi][facei][3] = pointLabel(i, j+1, nk);
facei++;
}
}
}
// ************************************************************************* //
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