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utilities/ExtractCriticalLayer.cpp
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2 //
3 // File ExtractCriticalLayer.cpp
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9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
10 // Department of Aeronautics, Imperial College London (UK), and Scientific
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31 //
32 // Description: Extract location of critical layer from streak file
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #include <cstdio>
37 #include <cstdlib>
38 
39 #include <MultiRegions/ExpList.h>
40 #include <MultiRegions/ExpList2D.h>
41 
42 using namespace std;
43 using namespace Nektar;
44 
46 
47 int main(int argc, char *argv[])
48 {
49  int i;
50  NekDouble cr = 0;
51 
52  if(argc !=3)
53  {
54  fprintf(stderr,"Usage: ./ExtractCriticalLayer meshfile fieldfile \n");
55  exit(1);
56  }
57 
58  //------------------------------------------------------------
59  // Create Session file.
61  = LibUtilities::SessionReader::CreateInstance(argc, argv);
62  //-----------------------------------------------------------
63 
64  //-------------------------------------------------------------
65  // Read in mesh from input file
66  SpatialDomains::MeshGraphSharedPtr graphShPt = SpatialDomains::MeshGraph::Read(vSession);
67  //------------------------------------------------------------
68 
69  //-------------------------------------------------------------
70  // Define Streak Expansion
72 
74  ::AllocateSharedPtr(vSession,graphShPt);
75  //---------------------------------------------------------------
76 
77  //----------------------------------------------
78  // Import field file.
79  string fieldfile(argv[argc-1]);
80  vector<LibUtilities::FieldDefinitionsSharedPtr> fielddef;
81  vector<vector<NekDouble> > fielddata;
82  LibUtilities::Import(fieldfile,fielddef,fielddata);
83  //----------------------------------------------
84 
85  //----------------------------------------------
86  // Copy data from field file
87  string streak_field("w");
88  for(unsigned int i = 0; i < fielddata.size(); ++i)
89  {
90  streak->ExtractDataToCoeffs(fielddef [i],
91  fielddata[i],
92  streak_field,
93  streak->UpdateCoeffs());
94  }
95  //----------------------------------------------
96 
97  int npts;
98  vSession->LoadParameter("NumCriticalLayerPts",npts,30);
99  Array<OneD, NekDouble> x_c(npts);
100  Array<OneD, NekDouble> y_c(npts);
101 
102  NekDouble trans;
103  vSession->LoadParameter("WidthOfLayers",trans,0.1);
104 
105  Computestreakpositions(streak,x_c, y_c,cr,trans);
106 
107  cout << "# x_c y_c" << endl;
108  for(i = 0; i < npts; ++i)
109  {
110  fprintf(stdout,"%12.10lf %12.10lf \n",x_c[i],y_c[i]);
111  //cout << x_c[i] << " " << y_c[i] << endl;
112  }
113 
114 }
void Import(const std::string &infilename, std::vector< FieldDefinitionsSharedPtr > &fielddefs, std::vector< std::vector< NekDouble > > &fielddata, FieldMetaDataMap &fieldinfomap, const Array< OneD, int > &ElementIDs)
This function allows for data to be imported from an FLD file when a session and/or communicator is n...
Definition: FieldIO.cpp:279
General purpose memory allocation routines with the ability to allocate from thread specific memory p...
STL namespace.
boost::shared_ptr< SessionReader > SessionReaderSharedPtr
Definition: MeshPartition.h:51
void Computestreakpositions(MultiRegions::ExpListSharedPtr &streak, Array< OneD, NekDouble > &xc, Array< OneD, NekDouble > &yc, NekDouble cr, NekDouble trans)
boost::shared_ptr< ExpList > ExpListSharedPtr
Shared pointer to an ExpList object.
static std::string npts
Definition: InputFld.cpp:43
double NekDouble
int main(int argc, char *argv[])
boost::shared_ptr< MeshGraph > MeshGraphSharedPtr
Definition: MeshGraph.h:442