CrossPowerLaw.C
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25 
26 #include "CrossPowerLaw.H"
28 #include "surfaceFields.H"
29 
30 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
31 
32 namespace Foam
33 {
34 namespace viscosityModels
35 {
36  defineTypeNameAndDebug(CrossPowerLaw, 0);
37 
39  (
40  viscosityModel,
41  CrossPowerLaw,
42  dictionary
43  );
44 }
45 }
46 
47 
48 // * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * * //
49 
51 Foam::viscosityModels::CrossPowerLaw::calcNu() const
52 {
53  return (nu0_ - nuInf_)/(scalar(1) + pow(m_*strainRate(), n_)) + nuInf_;
54 }
55 
56 
57 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
58 
60 (
61  const word& name,
62  const dictionary& viscosityProperties,
63  const volVectorField& U,
64  const surfaceScalarField& phi
65 )
66 :
67  viscosityModel(name, viscosityProperties, U, phi),
68  CrossPowerLawCoeffs_
69  (
70  viscosityProperties.optionalSubDict(typeName + "Coeffs")
71  ),
72  nu0_("nu0", dimViscosity, CrossPowerLawCoeffs_),
73  nuInf_("nuInf", dimViscosity, CrossPowerLawCoeffs_),
74  m_("m", dimTime, CrossPowerLawCoeffs_),
75  n_("n", dimless, CrossPowerLawCoeffs_),
76  nu_
77  (
78  IOobject
79  (
80  name,
81  U_.time().timeName(),
82  U_.db(),
85  ),
86  calcNu()
87  )
88 {}
89 
90 
91 // * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
92 
94 (
95  const dictionary& viscosityProperties
96 )
97 {
98  viscosityModel::read(viscosityProperties);
99 
100  CrossPowerLawCoeffs_ =
101  viscosityProperties.optionalSubDict(typeName + "Coeffs");
102 
103  CrossPowerLawCoeffs_.lookup("nu0") >> nu0_;
104  CrossPowerLawCoeffs_.lookup("nuInf") >> nuInf_;
105  CrossPowerLawCoeffs_.lookup("m") >> m_;
106  CrossPowerLawCoeffs_.lookup("n") >> n_;
107 
108  return true;
109 }
110 
111 
112 // ************************************************************************* //
Foam::surfaceFields.
const dimensionSet dimViscosity
A list of keyword definitions, which are a keyword followed by any number of values (e...
Definition: dictionary.H:156
const dimensionSet dimless
An abstract base class for incompressible viscosityModels.
Macros for easy insertion into run-time selection tables.
const dimensionSet dimTime
addToRunTimeSelectionTable(viscosityModel, BirdCarreau, dictionary)
const dictionary & optionalSubDict(const word &) const
Find and return a sub-dictionary if found.
Definition: dictionary.C:1040
virtual bool read(const dictionary &viscosityProperties)=0
Read transportProperties dictionary.
A class for handling words, derived from string.
Definition: word.H:59
defineTypeNameAndDebug(BirdCarreau, 0)
dimensionedScalar pow(const dimensionedScalar &ds, const dimensionedScalar &expt)
virtual bool read(const dictionary &viscosityProperties)
Read transportProperties dictionary.
Definition: CrossPowerLaw.C:94
A class for managing temporary objects.
Definition: PtrList.H:53
CrossPowerLaw(const word &name, const dictionary &viscosityProperties, const volVectorField &U, const surfaceScalarField &phi)
Construct from components.
Definition: CrossPowerLaw.C:60
IOobject defines the attributes of an object for which implicit objectRegistry management is supporte...
Definition: IOobject.H:92
Namespace for OpenFOAM.
ITstream & lookup(const word &, bool recursive=false, bool patternMatch=true) const
Find and return an entry data stream.
Definition: dictionary.C:844