From 94d3e79a8617f88dc0219cfdeedfa3147833719d Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Mon, 24 Jun 2019 14:43:36 +0200
Subject: Initialize at openlb-1-3
---
src/functors/lattice/blockLocalAverage3D.hh | 96 +++++++++++++++++++++++++++++
1 file changed, 96 insertions(+)
create mode 100644 src/functors/lattice/blockLocalAverage3D.hh
(limited to 'src/functors/lattice/blockLocalAverage3D.hh')
diff --git a/src/functors/lattice/blockLocalAverage3D.hh b/src/functors/lattice/blockLocalAverage3D.hh
new file mode 100644
index 0000000..8a0ed83
--- /dev/null
+++ b/src/functors/lattice/blockLocalAverage3D.hh
@@ -0,0 +1,96 @@
+/* This file is part of the OpenLB library
+ *
+ * Copyright (C) 2018 Adrian Kummerlaender
+ * E-mail contact: info@openlb.net
+ * The most recent release of OpenLB can be downloaded at
+ *
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+*/
+
+#ifndef BLOCK_LOCAL_AVERAGE_3D_HH
+#define BLOCK_LOCAL_AVERAGE_3D_HH
+
+#include "blockLocalAverage3D.h"
+#include "indicator/blockIndicatorF3D.h"
+
+namespace olb {
+
+
+template
+BlockLocalAverage3D::BlockLocalAverage3D(
+ BlockF3D& f,
+ BlockIndicatorF3D& indicatorF,
+ T radius)
+ : BlockF3D(f.getBlockStructure(), f.getTargetDim()),
+ _f(f),
+ _indicatorF(indicatorF),
+ _radius(radius)
+{
+ this->getName() = "BlockLocalAverage(" + _f.getName() + ")";
+}
+
+template
+bool BlockLocalAverage3D::operator() (W output[], const int input[])
+{
+ const auto& geometry = _indicatorF.getBlockGeometryStructure();
+
+ for (int i = 0; i < this->getTargetDim(); ++i) {
+ output[i] = 0.;
+ }
+
+ if (!_indicatorF(input)) {
+ return true;
+ }
+
+ T centerOfSphere[3];
+ geometry.getPhysR(centerOfSphere, input);
+ IndicatorSphere3D analyticalSphere(centerOfSphere, _radius);
+ BlockIndicatorFfromIndicatorF3D latticeSphere(
+ analyticalSphere,
+ _indicatorF.getBlockGeometryStructure());
+
+ std::size_t voxels(0);
+ int inputTmp[3];
+
+ for (inputTmp[0] = 0; inputTmp[0] < geometry.getNx(); ++inputTmp[0]) {
+ for (inputTmp[1] = 0; inputTmp[1] < geometry.getNy(); ++inputTmp[1]) {
+ for (inputTmp[2] = 0; inputTmp[2] < geometry.getNz(); ++inputTmp[2]) {
+ if (latticeSphere(inputTmp) && _indicatorF(inputTmp)) {
+ T outputTmp[_f.getTargetDim()];
+ _f(outputTmp, inputTmp);
+ for (int i = 0; i < this->getTargetDim(); ++i) {
+ output[i] += outputTmp[i];
+ }
+ voxels += 1;
+ }
+ }
+ }
+ }
+
+ if (voxels > 0) {
+ for (int i = 0; i < this->getTargetDim(); ++i) {
+ output[i] /= voxels;
+ }
+ }
+
+ return true;
+}
+
+
+}
+
+#endif
--
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