FreeFOAM The Cross-Platform CFD Toolkit
HerschelBulkley.H
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23 
24 Class
25  Foam::viscosityModels::HerschelBulkley
26 
27 Description
28  Herschel-Bulkley non-Newtonian viscosity model.
29 
30 SourceFiles
31  HerschelBulkley.C
32 
33 \*---------------------------------------------------------------------------*/
34 
35 #ifndef HerschelBulkley_H
36 #define HerschelBulkley_H
37 
40 #include <finiteVolume/volFields.H>
41 
42 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
43 
44 namespace Foam
45 {
46 namespace viscosityModels
47 {
48 
49 /*---------------------------------------------------------------------------*\
50  Class HerschelBulkley Declaration
51 \*---------------------------------------------------------------------------*/
52 
54 :
55  public viscosityModel
56 {
57  // Private data
58 
59  dictionary HerschelBulkleyCoeffs_;
60 
63  dimensionedScalar tau0_;
64  dimensionedScalar nu0_;
65 
66  volScalarField nu_;
67 
68 
69  // Private Member Functions
70 
71  //- Calculate and return the laminar viscosity
72  tmp<volScalarField> calcNu() const;
73 
74 
75 public:
76 
77  //- Runtime type information
78  TypeName("HerschelBulkley");
79 
80 
81  // Constructors
82 
83  //- Construct from components
85  (
86  const word& name,
88  const volVectorField& U,
89  const surfaceScalarField& phi
90  );
91 
92 
93  // Destructor
94 
96  {}
97 
98 
99  // Member Functions
100 
101  //- Return the laminar viscosity
103  {
104  return nu_;
105  }
106 
107  //- Correct the laminar viscosity
108  void correct()
109  {
110  nu_ = calcNu();
111  }
112 
113  //- Read transportProperties dictionary
114  bool read(const dictionary& viscosityProperties);
115 };
116 
117 
118 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
119 
120 } // End namespace viscosityModels
121 } // End namespace Foam
122 
123 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
124 
125 #endif
126 
127 // ************************ vim: set sw=4 sts=4 et: ************************ //