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diff --git a/src/dynamics/shanChenForcedSingleComponentPostProcessor3D.h b/src/dynamics/shanChenForcedSingleComponentPostProcessor3D.h
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+/*  This file is part of the OpenLB library
+ *
+ *  Copyright (C) 2008 Orestis Malaspinas, Andrea Parmigiani, Jonas Latt
+ *  E-mail contact: info@openlb.net
+ *  The most recent release of OpenLB can be downloaded at
+ *  <http://www.openlb.net/>
+ *
+ *  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 SHAN_CHEN_FORCED_SINGLE_COMPONENT_POST_PROCESSOR_3D_H
+#define SHAN_CHEN_FORCED_SINGLE_COMPONENT_POST_PROCESSOR_3D_H
+
+#include "core/spatiallyExtendedObject3D.h"
+#include "core/postProcessing.h"
+#include "core/blockLattice3D.h"
+
+
+namespace olb {
+
+/**
+* Multiphysics class for coupling between different lattices.
+*/
+
+// =========================================================================//
+// ===========Shan Chen coupling without wall interaction===================//
+// =========================================================================//
+
+template<typename T, typename DESCRIPTOR>
+class ShanChenForcedSingleComponentPostProcessor3D : public LocalPostProcessor3D<T,DESCRIPTOR> {
+public:
+  ShanChenForcedSingleComponentPostProcessor3D (
+    int x0_, int x1_, int y0_, int y1_, int z0_, int z1_, T G_, std::vector<T> rho0_,
+    AnalyticalF1D<T,T>& iP_, std::vector<SpatiallyExtendedObject3D*> partners_);
+  ShanChenForcedSingleComponentPostProcessor3D (
+    T G_, std::vector<T> rho0_,
+    AnalyticalF1D<T,T>& iP_, std::vector<SpatiallyExtendedObject3D*> partners_);
+  int extent() const override
+  {
+    return 1;
+  }
+  int extent(int whichDirection) const override
+  {
+    return 1;
+  }
+  void process(BlockLattice3D<T,DESCRIPTOR>& blockLattice) override;
+  void processSubDomain(BlockLattice3D<T,DESCRIPTOR>& blockLattice,
+                                int x0_, int x1_, int y0_, int y1_, int z0_, int z1_) override;
+private:
+  int x0, x1, y0, y1, z0, z1;
+  T G;
+  std::vector<T> rho0;
+  AnalyticalF1D<T,T>& interactionPotential;
+  std::vector<SpatiallyExtendedObject3D*> partners;
+};
+
+template<typename T, typename DESCRIPTOR>
+class ShanChenForcedSingleComponentGenerator3D : public LatticeCouplingGenerator3D<T,DESCRIPTOR> {
+public:
+  ShanChenForcedSingleComponentGenerator3D(int x0_, int x1_, int y0_, int y1_, int z0_, int z1_, T G_, std::vector<T> rho0_, AnalyticalF1D<T,T>& iP_);
+  ShanChenForcedSingleComponentGenerator3D(T G_, std::vector<T> rho0_, AnalyticalF1D<T,T>& iP_);
+  PostProcessor3D<T,DESCRIPTOR>* generate(std::vector<SpatiallyExtendedObject3D*> partners) const override;
+  LatticeCouplingGenerator3D<T,DESCRIPTOR>* clone() const override;
+private:
+  T G;
+  std::vector<T> rho0;
+  AnalyticalF1D<T,T>& interactionPotential;
+};
+
+}
+
+#endif