FreeFOAM The Cross-Platform CFD Toolkit
nearWallDist.C
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25 
26 #include "nearWallDist.H"
27 #include <finiteVolume/fvMesh.H>
31 
32 // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
33 
34 void Foam::nearWallDist::doAll()
35 {
36  cellDistFuncs wallUtils(mesh_);
37 
38  // Get patch ids of walls
39  labelHashSet wallPatchIDs(wallUtils.getPatchIDs<wallPolyPatch>());
40 
41  // Size neighbours array for maximum possible
42 
43  labelList neighbours(wallUtils.maxPatchSize(wallPatchIDs));
44 
45 
46  // Correct all cells with face on wall
47 
48  const volVectorField& cellCentres = mesh_.C();
49 
50  forAll(mesh_.boundary(), patchI)
51  {
52  fvPatchScalarField& ypatch = operator[](patchI);
53 
54  const fvPatch& patch = mesh_.boundary()[patchI];
55 
56  if (isA<wallFvPatch>(patch))
57  {
58  const polyPatch& pPatch = patch.patch();
59 
60  const unallocLabelList& faceCells = patch.faceCells();
61 
62  // Check cells with face on wall
63  forAll(patch, patchFaceI)
64  {
65  label nNeighbours = wallUtils.getPointNeighbours
66  (
67  pPatch,
68  patchFaceI,
69  neighbours
70  );
71 
72  label minFaceI = -1;
73 
74  ypatch[patchFaceI] = wallUtils.smallestDist
75  (
76  cellCentres[faceCells[patchFaceI]],
77  pPatch,
78  nNeighbours,
79  neighbours,
80  minFaceI
81  );
82  }
83  }
84  else
85  {
86  ypatch = 0.0;
87  }
88  }
89 }
90 
91 
92 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
93 
94 Foam::nearWallDist::nearWallDist(const Foam::fvMesh& mesh)
95 :
96  volScalarField::GeometricBoundaryField
97  (
98  mesh.boundary(),
99  mesh.V(), // Dummy internal field,
100  calculatedFvPatchScalarField::typeName
101  ),
102  mesh_(mesh)
103 {
104  doAll();
105 }
106 
107 
108 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
109 
111 {}
112 
113 
114 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
115 
117 {
118  if (mesh_.changing())
119  {
120  // Update size of GeometricBoundaryField
121  forAll(mesh_.boundary(), patchI)
122  {
123  operator[](patchI).setSize(mesh_.boundary()[patchI].size());
124  }
125  }
126 
127  doAll();
128 }
129 
130 
131 // ************************ vim: set sw=4 sts=4 et: ************************ //