src/thermophysicalModels/thermophysicalFunctions/NSRDSfunctions/NSRDSfunc1/NSRDSfunc1.H

   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
  21     You should have received a copy of the GNU General Public License
  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 Class
  26     Foam::NSRDSfunc1
  27
  28 Description
  29     NSRDS function number 101
  30
  31     Source:
  32     @verbatim
  33                       NSRDS - AICHE
  34                  Data Compilation Tables
  35                     of Properties of
  36                      Pure Compounds
  37
  38         Design Institute for Physical Property Data
  39           American Institute of Chemical Engineers
  40                   345 East 47th Street
  41                 New York, New York 10017
  42
  43          National Standard Reference Data System
  44          American Institute of Chemical Engineers
  45
  46           T.E. Daubert       -       R.P. Danner
  47
  48             Department of Chemical Engineering
  49             The Pennsylvania State University
  50                 University Park, PA 16802
  51     @endverbatim
  52
  53 \*---------------------------------------------------------------------------*/
  54
  55 #ifndef NSRDSfunc1_H
  56 #define NSRDSfunc1_H
  57
  58 #include "thermophysicalFunction.H"
  59
  60 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  61
  62 namespace Foam
  63 {
  64
  65 /*---------------------------------------------------------------------------*\
  66                            Class NSRDSfunc1 Declaration
  67 \*---------------------------------------------------------------------------*/
  68
  69 class NSRDSfunc1
  70 :
  71     public thermophysicalFunction
  72 {
  73     // Private data
  74
  75         // NSRDS function 101 coefficients
  76         scalar a_, b_, c_, d_, e_;
  77
  78
  79 public:
  80
  81     //- Runtime type information
  82     TypeName("NSRDSfunc1");
  83
  84
  85     // Constructors
  86
  87         //- Construct from components
  88         NSRDSfunc1(scalar a, scalar b, scalar c, scalar d, scalar e)
  89         :
  90             a_(a),
  91             b_(b),
  92             c_(c),
  93             d_(d),
  94             e_(e)
  95         {}
  96
  97         //- Construct from Istream
  98         NSRDSfunc1(Istream& is)
  99         :
 100             a_(readScalar(is)),
 101             b_(readScalar(is)),
 102             c_(readScalar(is)),
 103             d_(readScalar(is)),
 104             e_(readScalar(is))
 105         {}
 106
 107
 108     // Member Functions
 109
 110         //- Evaluate the function and return the result
 111         scalar f(scalar, scalar T) const
 112         {
 113             return exp(a_ + b_/T + c_*log(T) + d_*pow(T, e_));
 114         }
 115
 116
 117         //- Write the function coefficients
 118         void writeData(Ostream& os) const
 119         {
 120             os  << a_ << token::SPACE
 121                 << b_ << token::SPACE
 122                 << c_ << token::SPACE
 123                 << d_ << token::SPACE
 124                 << e_;
 125         }
 126
 127
 128     // Ostream Operator
 129
 130         friend Ostream& operator<<(Ostream& os, const NSRDSfunc1& f)
 131         {
 132             f.writeData(os);
 133             return os;
 134         }
 135 };
 136
 137
 138 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 139
 140 } // End namespace Foam
 141
 142 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 143
 144 #endif
 145
 146 // ************************************************************************* //