GRINS-0.8.0
velocity_drag.h
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1 //-----------------------------------------------------------------------bl-
2 //--------------------------------------------------------------------------
3 //
4 // GRINS - General Reacting Incompressible Navier-Stokes
5 //
6 // Copyright (C) 2014-2017 Paul T. Bauman, Roy H. Stogner
7 // Copyright (C) 2010-2013 The PECOS Development Team
8 //
9 // This library is free software; you can redistribute it and/or
10 // modify it under the terms of the Version 2.1 GNU Lesser General
11 // Public License as published by the Free Software Foundation.
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23 //-----------------------------------------------------------------------el-
24 
25 
26 #ifndef GRINS_VELOCITY_DRAG_H
27 #define GRINS_VELOCITY_DRAG_H
28 
29 // GRINS
30 #include "grins_config.h"
31 #include "grins/assembly_context.h"
32 #include "grins/cached_values.h"
35 
36 // libMesh
37 #include "libmesh/getpot.h"
38 
39 // C++
40 #include <string>
41 
42 namespace GRINS
43 {
44 
46  /*
47  This physics class imposes a force against the direction of (and
48  proportional to an exponent of the magnitude of) a specified
49  vector field.
50  */
51  template<class Viscosity>
52  class VelocityDrag : public VelocityDragBase<Viscosity>
53  {
54  public:
55 
56  VelocityDrag( const std::string& physics_name, const GetPot& input );
57 
59 
60  virtual void init_context( AssemblyContext& context );
61 
62  // residual and jacobian calculations
63  // element_*, side_* as *time_derivative, *constraint, *mass_residual
64 
65  // Constraint part(s)
66  virtual void element_time_derivative( bool compute_jacobian,
67  AssemblyContext& context );
68 
69  private:
70 
71  VelocityDrag();
72  };
73 
74 } // end namespace block
75 
76 #endif // GRINS_VELOCITY_DRAG_H
virtual void init_context(AssemblyContext &context)
Initialize context for added physics variables.
Definition: velocity_drag.C:46
Physics class for Velocity Drag.
Definition: velocity_drag.h:52
GRINS namespace.
virtual void element_time_derivative(bool compute_jacobian, AssemblyContext &context)
Time dependent part(s) of physics for element interiors.
Definition: velocity_drag.C:55

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