FreeFOAM The Cross-Platform CFD Toolkit
ArrheniusReactionRateI.H
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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 |
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25 
26 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
27 
28 namespace Foam
29 {
30 
31 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
32 
33 // Construct from components
35 (
36  const scalar A,
37  const scalar beta,
38  const scalar Ta
39 )
40 :
41  A_(A),
42  beta_(beta),
43  Ta_(Ta)
44 {}
45 
46 
47 //- Construct from Istream
49 (
50  const speciesTable&,
51  Istream& is
52 )
53 :
54  A_(readScalar(is.readBegin("ArrheniusReactionRate(Istream&)"))),
55  beta_(readScalar(is)),
56  Ta_(readScalar(is))
57 {
58  is.readEnd("ArrheniusReactionRate(Istream&)");
59 }
60 
61 
62 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
63 
64 inline scalar ArrheniusReactionRate::operator()
65 (
66  const scalar T,
67  const scalar,
68  const scalarField&
69 ) const
70 {
71  scalar ak = A_;
72 
73  if (mag(beta_) > VSMALL)
74  {
75  ak *= pow(T, beta_);
76  }
77 
78  if (mag(Ta_) > VSMALL)
79  {
80  ak *= exp(-Ta_/T);
81  }
82 
83  return ak;
84 }
85 
86 
88 {
89  os << token::BEGIN_LIST
90  << arr.A_ << token::SPACE << arr.beta_ << token::SPACE << arr.Ta_
91  << token::END_LIST;
92  return os;
93 }
94 
95 
96 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
97 
98 } // End namespace Foam
99 
100 // ************************ vim: set sw=4 sts=4 et: ************************ //