WenYu.C
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5  \\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
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25 
26 #include "WenYu.H"
28 
29 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
30 
31 namespace Foam
32 {
33 namespace dragModels
34 {
35  defineTypeNameAndDebug(WenYu, 0);
36 
38  (
39  dragModel,
40  WenYu,
41  dictionary
42  );
43 }
44 }
45 
46 
47 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
48 
50 (
51  const dictionary& interfaceDict,
52  const phaseModel& phase1,
53  const phaseModel& phase2
54 )
55 :
56  dragModel(interfaceDict, phase1, phase2)
57 {}
58 
59 
60 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
61 
63 {}
64 
65 
66 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
67 
69 (
70  const volScalarField& Ur
71 ) const
72 {
73  volScalarField alpha2(max(phase2_, scalar(1.0e-6)));
74  volScalarField bp(pow(alpha2, -2.65));
75 
76  volScalarField Re(max(Ur*phase1_.d()/phase2_.nu(), scalar(1.0e-3)));
77  volScalarField Cds
78  (
79  neg(Re - 1000)*(24.0*(1.0 + 0.15*pow(Re, 0.687))/Re)
80  + pos(Re - 1000)*0.44
81  );
82 
83  return 0.75*Cds*phase2_.rho()*Ur*bp/phase1_.d();
84 }
85 
86 
87 // ************************************************************************* //
const double e
Elementary charge.
Definition: doubleFloat.H:78
dimensioned< Type > max(const dimensioned< Type > &, const dimensioned< Type > &)
const phaseModel & phase1_
Definition: dragModel.H:57
dimensionedScalar neg(const dimensionedScalar &ds)
Macros for easy insertion into run-time selection tables.
GeometricField< scalar, fvPatchField, volMesh > volScalarField
Definition: volFieldsFwd.H:52
dimensionedScalar pos(const dimensionedScalar &ds)
const phaseModel & phase2_
Definition: dragModel.H:58
virtual tmp< volScalarField > K() const
Return the drag coefficient K.
const dimensionedScalar & rho() const
Definition: phaseModel.H:165
virtual ~WenYu()
Destructor.
const dimensionedScalar & nu() const
Return the laminar viscosity.
Definition: phaseModel.H:150
alpha2
Definition: alphaEqn.H:112
phaseModel & phase1
addToRunTimeSelectionTable(ensightPart, ensightPartCells, istream)
WenYu(const dictionary &interfaceDict, const phaseModel &phase1, const phaseModel &phase2)
Construct from components.
defineTypeNameAndDebug(combustionModel, 0)
tmp< volScalarField > d() const
dimensionedScalar pow(const dimensionedScalar &ds, const dimensionedScalar &expt)
phaseModel & phase2
A class for managing temporary objects.
Definition: PtrList.H:54
scalarField Re(const UList< complex > &cf)
Definition: complexFields.C:97
Namespace for OpenFOAM.