FreeFOAM The Cross-Platform CFD Toolkit
NSRDSfunc6.H
Go to the documentation of this file.
1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
6  \\/ M anipulation |
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
13  the Free Software Foundation, either version 3 of the License, or
14  (at your 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, see <http://www.gnu.org/licenses/>.
23 
24 Class
25  Foam::NSRDSfunc6
26 
27 Description
28  NSRDS function number 106
29 
30  Source:
31  @verbatim
32  NSRDS - AICHE
33  Data Compilation Tables
34  of Properties of
35  Pure Compounds
36 
37  Design Institute for Physical Property Data
38  American Institute of Chemical Engineers
39  345 East 47th Street
40  New York, New York 10017
41 
42  National Standard Reference Data System
43  American Institute of Chemical Engineers
44 
45  T.E. Daubert - R.P. Danner
46 
47  Department of Chemical Engineering
48  The Pennsylvania State University
49  University Park, PA 16802
50  @endverbatim
51 
52 \*---------------------------------------------------------------------------*/
53 
54 #ifndef NSRDSfunc6_H
55 #define NSRDSfunc6_H
56 
58 
59 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
60 
61 namespace Foam
62 {
63 
64 /*---------------------------------------------------------------------------*\
65  Class NSRDSfunc6 Declaration
66 \*---------------------------------------------------------------------------*/
67 
69 :
71 {
72  // Private data
73 
74  // NSRDS function 106 coefficients
75  scalar Tc_, a_, b_, c_, d_, e_;
76 
77 
78 public:
79 
80  //- Runtime type information
81  TypeName("NSRDSfunc6");
82 
83 
84  // Constructors
85 
86  //- Construct from components
87  NSRDSfunc6(scalar Tc, scalar a, scalar b, scalar c, scalar d, scalar e)
88  :
89  Tc_(Tc),
90  a_(a),
91  b_(b),
92  c_(c),
93  d_(d),
94  e_(e)
95  {}
96 
97  //- Construct from Istream
99  :
100  Tc_(readScalar(is)),
101  a_(readScalar(is)),
102  b_(readScalar(is)),
103  c_(readScalar(is)),
104  d_(readScalar(is)),
105  e_(readScalar(is))
106  {}
107 
108 
109  // Member Functions
110 
111  //- Evaluate the function and return the result
112  scalar f(scalar, scalar T) const
113  {
114  scalar Tr = T/Tc_;
115  return a_*pow(1 - Tr, ((e_*Tr + d_)*Tr + c_)*Tr + b_);
116  }
117 
118 
119  //- Write the function coefficients
120  void writeData(Ostream& os) const
121  {
122  os << Tc_ << token::SPACE
123  << a_ << token::SPACE
124  << b_ << token::SPACE
125  << c_ << token::SPACE
126  << d_ << token::SPACE
127  << e_;
128  }
129 
130 
131  // Ostream Operator
132 
133  friend Ostream& operator<<(Ostream& os, const NSRDSfunc6& f)
134  {
135  f.writeData(os);
136  return os;
137  }
138 };
139 
140 
141 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
142 
143 } // End namespace Foam
144 
145 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
146 
147 #endif
148 
149 // ************************ vim: set sw=4 sts=4 et: ************************ //