All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
kOmega.H
Go to the documentation of this file.
1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration | Website: https://openfoam.org
5  \\ / A nd | Copyright (C) 2011-2021 OpenFOAM Foundation
6  \\/ M anipulation |
7 -------------------------------------------------------------------------------
8 License
9  This file is part of OpenFOAM.
10 
11  OpenFOAM is free software: you can redistribute it and/or modify it
12  under the terms of the GNU General Public License as published by
13  the Free Software Foundation, either version 3 of the License, or
14  (at your option) any later version.
15 
16  OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19  for more details.
20 
21  You should have received a copy of the GNU General Public License
22  along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
23 
24 Class
25  Foam::RASModels::kOmega
26 
27 Description
28  Standard high Reynolds-number k-omega turbulence model for
29  incompressible and compressible flows.
30 
31  References:
32  \verbatim
33  Wilcox, D. C. (1998).
34  Turbulence modeling for CFD
35  (Vol. 2, pp. 103-217). La Canada, CA: DCW industries.
36  \endverbatim
37 
38  The default model coefficients are
39  \verbatim
40  kOmegaCoeffs
41  {
42  Cmu 0.09; // Equivalent to betaStar
43  gamma 0.52;
44  beta 0.072;
45  alphak 0.5;
46  alphaOmega 0.5;
47  }
48  \endverbatim
49 
50 SourceFiles
51  kOmega.C
52 
53 \*---------------------------------------------------------------------------*/
54 
55 #ifndef kOmega_H
56 #define kOmega_H
57 
58 #include "RASModel.H"
59 #include "eddyViscosity.H"
60 
61 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
62 
63 namespace Foam
64 {
65 namespace RASModels
66 {
67 
68 /*---------------------------------------------------------------------------*\
69  Class kOmega Declaration
70 \*---------------------------------------------------------------------------*/
71 
72 template<class BasicMomentumTransportModel>
73 class kOmega
74 :
75  public eddyViscosity<RASModel<BasicMomentumTransportModel>>
76 {
77 
78 protected:
79 
80  // Protected data
81 
82  // Model coefficients
83 
89 
90 
91  // Fields
92 
95 
96 
97  // Protected Member Functions
98 
99  virtual void correctNut();
100  virtual tmp<fvScalarMatrix> kSource() const;
101  virtual tmp<fvScalarMatrix> omegaSource() const;
102 
103 
104 public:
106  typedef typename BasicMomentumTransportModel::alphaField alphaField;
107  typedef typename BasicMomentumTransportModel::rhoField rhoField;
108  typedef typename BasicMomentumTransportModel::transportModel transportModel;
109 
110 
111  //- Runtime type information
112  TypeName("kOmega");
113 
114 
115  // Constructors
116 
117  //- Construct from components
118  kOmega
119  (
120  const alphaField& alpha,
121  const rhoField& rho,
122  const volVectorField& U,
123  const surfaceScalarField& alphaRhoPhi,
124  const surfaceScalarField& phi,
125  const transportModel& transport,
126  const word& type = typeName
127  );
128 
129 
130  //- Destructor
131  virtual ~kOmega()
132  {}
133 
134 
135  // Member Functions
136 
137  //- Read RASProperties dictionary
138  virtual bool read();
139 
140  //- Return the effective diffusivity for k
141  tmp<volScalarField> DkEff() const
142  {
143  return volScalarField::New
144  (
145  "DkEff",
146  alphaK_*this->nut_ + this->nu()
147  );
148  }
149 
150  //- Return the effective diffusivity for omega
152  {
153  return volScalarField::New
154  (
155  "DomegaEff",
156  alphaOmega_*this->nut_ + this->nu()
157  );
158  }
159 
160  //- Return the turbulence kinetic energy
161  virtual tmp<volScalarField> k() const
162  {
163  return k_;
164  }
165 
166  //- Return the turbulence specific dissipation rate
167  virtual tmp<volScalarField> omega() const
168  {
169  return omega_;
170  }
171 
172  //- Return the turbulence kinetic energy dissipation rate
173  virtual tmp<volScalarField> epsilon() const
174  {
175  return volScalarField::New
176  (
177  "epsilon",
178  Cmu_*k_*omega_,
179  omega_.boundaryField().types()
180  );
181  }
182 
183  //- Solve the turbulence equations and correct the turbulence viscosity
184  virtual void correct();
185 };
186 
187 
188 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
189 
190 } // End namespace RASModels
191 } // End namespace Foam
192 
193 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
194 #ifdef NoRepository
195  #include "kOmega.C"
196 #endif
197 
198 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
199 
200 #endif
201 
202 // ************************************************************************* //
virtual tmp< volScalarField > k() const
Return the turbulence kinetic energy.
Definition: kOmega.H:160
const Boundary & boundaryField() const
Return const-reference to the boundary field.
virtual tmp< volScalarField > epsilon() const
Return the turbulence kinetic energy dissipation rate.
Definition: kOmega.H:172
dimensionedScalar alphaK_
Definition: kOmega.H:86
volScalarField alpha(IOobject("alpha", runTime.timeName(), mesh, IOobject::READ_IF_PRESENT, IOobject::AUTO_WRITE), lambda *max(Ua &U, zeroSensitivity))
TypeName("kOmega")
Runtime type information.
static tmp< GeometricField< scalar, fvPatchField, volMesh > > New(const word &name, const Internal &, const PtrList< fvPatchField< scalar >> &)
Return a temporary field constructed from name,.
Eddy viscosity turbulence model base class.
Definition: eddyViscosity.H:49
BasicMomentumTransportModel::rhoField rhoField
Definition: kOmega.H:106
dimensionedScalar Cmu_
Definition: kOmega.H:83
tmp< volScalarField > DkEff() const
Return the effective diffusivity for k.
Definition: kOmega.H:140
A class for handling words, derived from string.
Definition: word.H:59
tmp< volScalarField > DomegaEff() const
Return the effective diffusivity for omega.
Definition: kOmega.H:150
dimensionedScalar alphaOmega_
Definition: kOmega.H:87
phi
Definition: correctPhi.H:3
BasicMomentumTransportModel::alphaField alphaField
Definition: kOmega.H:105
virtual void correct()
Solve the turbulence equations and correct the turbulence viscosity.
Definition: kOmega.C:207
volScalarField k_
Definition: kOmega.H:92
kOmega(const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &type=typeName)
Construct from components.
Definition: kOmega.C:82
dimensionedScalar beta_
Definition: kOmega.H:84
virtual void correctNut()
Definition: kOmega.C:41
virtual bool read()
Read RASProperties dictionary.
Definition: kOmega.C:187
virtual ~kOmega()
Destructor.
Definition: kOmega.H:130
U
Definition: pEqn.H:72
BasicMomentumTransportModel::transportModel transportModel
Definition: kOmega.H:107
fileType type(const fileName &, const bool checkVariants=true, const bool followLink=true)
Return the file type: directory or file.
Definition: POSIX.C:488
virtual tmp< fvScalarMatrix > kSource() const
Definition: kOmega.C:50
virtual tmp< volScalarField > omega() const
Return the turbulence specific dissipation rate.
Definition: kOmega.H:166
A class for managing temporary objects.
Definition: PtrList.H:53
volScalarField omega_
Definition: kOmega.H:93
Standard high Reynolds-number k-omega turbulence model for incompressible and compressible flows...
Definition: kOmega.H:72
dimensionedScalar gamma_
Definition: kOmega.H:85
Namespace for OpenFOAM.
virtual tmp< fvScalarMatrix > omegaSource() const
Definition: kOmega.C:65