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Forcing.h
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File: Forcing.h
4 //
5 // For more information, please see: http://www.nektar.info
6 //
7 // The MIT License
8 //
9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
10 // Department of Aeronautics, Imperial College London (UK), and Scientific
11 // Computing and Imaging Institute, University of Utah (USA).
12 //
13 // License for the specific language governing rights and limitations under
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15 // copy of this software and associated documentation files (the "Software"),
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21 // The above copyright notice and this permission notice shall be included
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24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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31 //
32 // Description: Abstract base class for advection.
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #ifndef NEKTAR_SOLVERUTILS_FORCING
37 #define NEKTAR_SOLVERUTILS_FORCING
38 
39 #include <string>
40 
43 #include <MultiRegions/ExpList.h>
45 
46 namespace Nektar
47 {
48 namespace SolverUtils
49 {
50  // Forward declaration
51  class Forcing;
52 
53  /// A shared pointer to an EquationSystem object
54  SOLVER_UTILS_EXPORT typedef boost::shared_ptr<Forcing> ForcingSharedPtr;
55 
56  /// Declaration of the forcing factory
57  typedef LibUtilities::NekFactory<std::string, Forcing,
59  const Array<OneD, MultiRegions::ExpListSharedPtr>&,
60  const unsigned int&,
61  const TiXmlElement*> ForcingFactory;
62 
63  /// Declaration of the forcing factory singleton
65 
66  /**
67  * @class Forcing
68  * @brief Defines a forcing term to be explicitly applied.
69  */
70  class Forcing
71  {
72  public:
74 
75  /// Initialise the forcing object
77  const Array<OneD, MultiRegions::ExpListSharedPtr>& pFields,
78  const unsigned int& pNumForcingFields,
79  const TiXmlElement* pForce);
80 
81  /// Apply the forcing
83  const Array<OneD, MultiRegions::ExpListSharedPtr> &fields,
84  const Array<OneD, Array<OneD, NekDouble> > &inarray,
85  Array<OneD, Array<OneD, NekDouble> > &outarray,
86  const NekDouble &time);
87 
88  SOLVER_UTILS_EXPORT static std::vector<ForcingSharedPtr> Load(
90  const Array<OneD, MultiRegions::ExpListSharedPtr>& pFields,
91  const unsigned int& pNumForcingFields = 0);
92 
93  protected:
94  /// Session reader
96  /// Evaluated forcing function
97  Array<OneD, Array<OneD, NekDouble> > m_Forcing;
98  /// Number of variables
100 
101  /// Constructor
104 
105  SOLVER_UTILS_EXPORT virtual void v_InitObject(
106  const Array<OneD, MultiRegions::ExpListSharedPtr>& pFields,
107  const unsigned int& pNumForcingFields,
108  const TiXmlElement* pForce) = 0;
109 
110  SOLVER_UTILS_EXPORT virtual void v_Apply(
111  const Array<OneD, MultiRegions::ExpListSharedPtr> &fields,
112  const Array<OneD, Array<OneD, NekDouble> > &inarray,
113  Array<OneD, Array<OneD, NekDouble> > &outarray,
114  const NekDouble &time)=0;
115 
116  void EvaluateFunction(
117  Array<OneD, MultiRegions::ExpListSharedPtr> pFields,
119  std::string pFieldName,
120  Array<OneD, NekDouble>& pArray,
121  const std::string& pFunctionName,
122  NekDouble pTime = NekDouble(0));
123 
126  std::string pFieldName,
127  Array<OneD, NekDouble>& pArray,
128  const std::string& pFunctionName,
129  NekDouble pTime = NekDouble(0));
130 
131  };
132 }
133 }
134 
135 #endif