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/dynamics/chopardDynamics.h | 67 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)
create mode 100644 src/dynamics/chopardDynamics.h
(limited to 'src/dynamics/chopardDynamics.h')
diff --git a/src/dynamics/chopardDynamics.h b/src/dynamics/chopardDynamics.h
new file mode 100644
index 0000000..c2e8c51
--- /dev/null
+++ b/src/dynamics/chopardDynamics.h
@@ -0,0 +1,67 @@
+/* This file is part of the OpenLB library
+ *
+ * Copyright (C) 2008 Jonas Latt
+ * 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.
+*/
+
+/** \file
+ * BGK Dynamics with adjustable speed of sound -- header file.
+ */
+#ifndef CHOPARD_DYNAMICS_H
+#define CHOPARD_DYNAMICS_H
+
+#include "dynamics/dynamics.h"
+#include "core/cell.h"
+
+namespace olb {
+
+/// Implementation of the BGK collision step
+template
+class ChopardDynamics : public BasicDynamics {
+public:
+ /// Constructor
+ ChopardDynamics(T vs2_, T omega_, Momenta& momenta_);
+ ChopardDynamics(T omega_, Momenta& momenta_);
+ /// Compute equilibrium distribution function
+ T computeEquilibrium(int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr) const override;
+ /// Collision step
+ void collide(Cell& cell,
+ LatticeStatistics& statistics_) override;
+ /// Get local relaxation parameter of the dynamics
+ T getOmega() const override;
+ /// Set local relaxation parameter of the dynamics
+ void setOmega(T omega_) override;
+ /// Set local speed of sound
+ void setVs2(T vs2_);
+ /// Get local speed of sound
+ T getVs2() const;
+public:
+ static T chopardBgkCollision (
+ Cell& cell, T rho, const T u[DESCRIPTOR::d], T vs2, T omega);
+ static T chopardEquilibrium (
+ int iPop, T rho, const T u[DESCRIPTOR::d], T uSqr, T vs2 );
+private:
+ T vs2; ///< speed of sound
+ T omega; ///< relaxation parameter
+};
+
+}
+
+#endif
--
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