threePhaseInterfaceProperties.H
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23 
24 Class
25  Foam::threePhaseInterfaceProperties
26 
27 Description
28  Properties to aid interFoam :
29  1. Correct the alpha boundary condition for dynamic contact angle.
30  2. Calculate interface curvature.
31 
32 SourceFiles
33  threePhaseInterfaceProperties.C
34 
35 \*---------------------------------------------------------------------------*/
36 
37 #ifndef threePhaseInterfaceProperties_H
38 #define threePhaseInterfaceProperties_H
39 
41 #include "surfaceFields.H"
42 
43 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
44 
45 namespace Foam
46 {
47 
48 /*---------------------------------------------------------------------------*\
49  Class threePhaseInterfaceProperties Declaration
50 \*---------------------------------------------------------------------------*/
51 
53 {
54  // Private Data
55 
56  const incompressibleThreePhaseMixture& mixture_;
57 
58  //- Compression coefficient
59  scalar cAlpha_;
60 
61  //- Surface tension 1-2
62  dimensionedScalar sigma12_;
63 
64  //- Surface tension 1-3
65  dimensionedScalar sigma13_;
66 
67  //- Stabilisation for normalisation of the interface normal
68  const dimensionedScalar deltaN_;
69 
70  surfaceScalarField nHatf_;
71  volScalarField K_;
72 
73 
74  // Private Member Functions
75 
76  //- Correction for the boundary condition on the unit normal nHat on
77  // walls to produce the correct contact dynamic angle.
78  // Calculated from the component of U parallel to the wall
79  void correctContactAngle
80  (
81  surfaceVectorField::Boundary& nHat
82  ) const;
83 
84  //- Re-calculate the interface curvature
85  void calculateK();
86 
87 
88 public:
89 
90  // Constructors
91 
92  //- Construct from volume fraction field alpha and IOdictionary
94  (
96  );
97 
98  //- Disallow default bitwise copy construction
100  (
102  ) = delete;
103 
104 
105  // Member Functions
107  scalar cAlpha() const
108  {
109  return cAlpha_;
110  }
112  const dimensionedScalar& deltaN() const
113  {
114  return deltaN_;
115  }
117  const surfaceScalarField& nHatf() const
118  {
119  return nHatf_;
120  }
122  const volScalarField& K() const
123  {
124  return K_;
125  }
127  tmp<volScalarField> sigma() const
128  {
129  volScalarField limitedAlpha2(max(mixture_.alpha2(), scalar(0)));
130  volScalarField limitedAlpha3(max(mixture_.alpha3(), scalar(0)));
131 
132  return
133  (limitedAlpha2*sigma12_ + limitedAlpha3*sigma13_)
134  /(limitedAlpha2 + limitedAlpha3 + small);
135  }
138  {
139  return sigma()*K_;
140  }
141 
143 
144  //- Indicator of the proximity of the interface
145  // Field values are 1 near and 0 away for the interface.
148  void correct()
149  {
150  calculateK();
151  }
152 
153 
154  // Member Operators
155 
156  //- Disallow default bitwise assignment
157  void operator=(const threePhaseInterfaceProperties&) = delete;
158 };
159 
160 
161 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
162 
163 } // End namespace Foam
164 
165 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
166 
167 #endif
168 
169 // ************************************************************************* //
Foam::surfaceFields.
tmp< volScalarField > nearInterface() const
Indicator of the proximity of the interface.
dimensioned< Type > max(const dimensioned< Type > &, const dimensioned< Type > &)
const surfaceScalarField & nHatf() const
Properties to aid interFoam : 1. Correct the alpha boundary condition for dynamic contact angle...
tmp< surfaceScalarField > surfaceTensionForce() const
void operator=(const threePhaseInterfaceProperties &)=delete
Disallow default bitwise assignment.
threePhaseInterfaceProperties(const incompressibleThreePhaseMixture &mixture)
Construct from volume fraction field alpha and IOdictionary.
const dimensionedScalar & deltaN() const
A class for managing temporary objects.
Definition: PtrList.H:53
Namespace for OpenFOAM.