applications/utilities/postProcessing/miscellaneous/postChannel/channelIndexTemplates.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
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   5     \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
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   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of OpenFOAM.
  10
  11     OpenFOAM is free software; you can redistribute it and/or modify it
  12     under the terms of the GNU General Public License as published by the
  13     Free Software Foundation; either version 2 of the License, or (at your
  14     option) any later version.
  15
  16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
  17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19     for more details.
  20
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  22     along with OpenFOAM; if not, write to the Free Software Foundation,
  23     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  24
  25 \*---------------------------------------------------------------------------*/
  26
  27 #include "channelIndex.H"
  28
  29 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
  30
  31 template<class T>
  32 Foam::Field<T> Foam::channelIndex::regionSum(const Field<T>& cellField) const
  33 {
  34     Field<T> regionField(cellRegion_().nRegions(), pTraits<T>::zero);
  35
  36     forAll(cellRegion_(), cellI)
  37     {
  38         regionField[cellRegion_()[cellI]] += cellField[cellI];
  39     }
  40
  41     // Global sum
  42     Pstream::listCombineGather(regionField, plusEqOp<T>());
  43     Pstream::listCombineScatter(regionField);
  44
  45     return regionField;
  46 }
  47
  48
  49 template<class T>
  50 Foam::Field<T> Foam::channelIndex::collapse
  51 (
  52     const Field<T>& cellField,
  53     const bool asymmetric
  54 ) const
  55 {
  56     // Average and order
  57     const Field<T> summedField(regionSum(cellField));
  58
  59     Field<T> regionField
  60     (
  61         summedField
  62       / regionCount_,
  63         sortMap_
  64     );
  65
  66     // Symmetry?
  67     if (symmetric_)
  68     {
  69         label nlb2 = cellRegion_().nRegions()/2;
  70
  71         if (asymmetric)
  72         {
  73             for (label j=0; j<nlb2; j++)
  74             {
  75                 regionField[j] =
  76                     0.5
  77                   * (
  78                         regionField[j]
  79                       - regionField[cellRegion_().nRegions() - j - 1]
  80                     );
  81             }
  82         }
  83         else
  84         {
  85             for (label j=0; j<nlb2; j++)
  86             {
  87                 regionField[j] =
  88                     0.5
  89                   * (
  90                         regionField[j]
  91                       + regionField[cellRegion_().nRegions() - j - 1]
  92                     );
  93             }
  94         }
  95
  96         regionField.setSize(nlb2);
  97     }
  98
  99     return regionField;
 100 }
 101
 102
 103 // ************************************************************************* //