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LRR.H
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23 
24 Class
25  Foam::RASModels::LRR
26 
27 Description
28  Launder, Reece and Rodi Reynolds-stress turbulence model for
29  incompressible and compressible flows.
30 
31  Reference:
32  \verbatim
33  Launder, B. E., Reece, G. J., & Rodi, W. (1975).
34  Progress in the development of a Reynolds-stress turbulence closure.
35  Journal of fluid mechanics, 68(03), 537-566.
36  \endverbatim
37 
38  Including the recommended generalized gradient diffusion model of
39  Daly and Harlow:
40  \verbatim
41  Daly, B. J., & Harlow, F. H. (1970).
42  Transport equations in turbulence.
43  Physics of Fluids (1958-1988), 13(11), 2634-2649.
44  \endverbatim
45 
46  Optional Gibson-Launder wall-reflection is also provided:
47  \verbatim
48  Gibson, M. M., & Launder, B. E. (1978).
49  Ground effects on pressure fluctuations in the
50  atmospheric boundary layer.
51  Journal of Fluid Mechanics, 86(03), 491-511.
52  \endverbatim
53 
54  The default model coefficients are:
55  \verbatim
56  LRRCoeffs
57  {
58  Cmu 0.09;
59  C1 1.8;
60  C2 0.6;
61  Ceps1 1.44;
62  Ceps2 1.92;
63  Cs 0.25;
64  Ceps 0.15;
65 
66  wallReflection yes;
67  kappa 0.41
68  Cref1 0.5;
69  Cref2 0.3;
70 
71  couplingFactor 0.0;
72  }
73  \endverbatim
74 
75 SourceFiles
76  LRR.C
77 
78 \*---------------------------------------------------------------------------*/
79 
80 #ifndef LRR_H
81 #define LRR_H
82 
83 #include "RASModel.H"
84 #include "ReynoldsStress.H"
85 
86 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
87 
88 namespace Foam
89 {
90 namespace RASModels
91 {
92 
93 /*---------------------------------------------------------------------------*\
94  Class LRR Declaration
95 \*---------------------------------------------------------------------------*/
96 
97 template<class BasicTurbulenceModel>
98 class LRR
99 :
100  public ReynoldsStress<RASModel<BasicTurbulenceModel>>
101 {
102 protected:
103 
104  // Protected data
105 
106  // Model coefficients
117 
118 
119  // Wall-refection coefficients
125 
126 
127  // Fields
131 
132 
133  // Protected Member Functions
134 
135  //- Update the eddy-viscosity
136  virtual void correctNut();
137 
138 
139 public:
141  typedef typename BasicTurbulenceModel::alphaField alphaField;
142  typedef typename BasicTurbulenceModel::rhoField rhoField;
143  typedef typename BasicTurbulenceModel::transportModel transportModel;
144 
145 
146  //- Runtime type information
147  TypeName("LRR");
148 
149 
150  // Constructors
151 
152  //- Construct from components
153  LRR
154  (
155  const alphaField& alpha,
156  const rhoField& rho,
157  const volVectorField& U,
158  const surfaceScalarField& alphaRhoPhi,
159  const surfaceScalarField& phi,
160  const transportModel& transport,
161  const word& propertiesName = turbulenceModel::propertiesName,
162  const word& type = typeName
163  );
164 
165  //- Disallow default bitwise copy construction
166  LRR(const LRR&) = delete;
167 
168 
169  //- Destructor
170  virtual ~LRR()
171  {}
172 
173 
174  // Member Functions
175 
176  //- Read model coefficients if they have changed
177  virtual bool read();
178 
179  //- Return the turbulence kinetic energy
180  virtual tmp<volScalarField> k() const
181  {
182  return k_;
183  }
184 
185  //- Return the turbulence kinetic energy dissipation rate
186  virtual tmp<volScalarField> epsilon() const
187  {
188  return epsilon_;
189  }
190 
191  //- Return the effective diffusivity for R
193 
194  //- Return the effective diffusivity for epsilon
196 
197  //- Solve the turbulence equations and correct eddy-Viscosity and
198  // related properties
199  virtual void correct();
200 
201 
202  // Member Operators
203 
204  //- Disallow default bitwise assignment
205  void operator=(const LRR&) = delete;
206 };
207 
208 
209 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
210 
211 } // End namespace RASModels
212 } // End namespace Foam
213 
214 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
215 
216 #ifdef NoRepository
217  #include "LRR.C"
218 #endif
219 
220 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
221 
222 #endif
223 
224 // ************************************************************************* //
dimensionedScalar C2_
Definition: LRR.H:110
dimensionedScalar Cref2_
Definition: LRR.H:123
volScalarField epsilon_
Definition: LRR.H:129
surfaceScalarField & phi
tmp< volSymmTensorField > DREff() const
Return the effective diffusivity for R.
Definition: LRR.C:244
virtual tmp< volScalarField > k() const
Return the turbulence kinetic energy.
Definition: LRR.H:179
A simple wrapper around bool so that it can be read as a word: true/false, on/off, yes/no, y/n, t/f, or none/any.
Definition: Switch.H:60
Switch wallReflection_
Definition: LRR.H:120
virtual bool read()
Read model coefficients if they have changed.
Definition: LRR.C:217
tmp< volSymmTensorField > DepsilonEff() const
Return the effective diffusivity for epsilon.
Definition: LRR.C:255
Launder, Reece and Rodi Reynolds-stress turbulence model for incompressible and compressible flows...
Definition: LRR.H:97
dimensionedScalar Cs_
Definition: LRR.H:114
static const word propertiesName
Default name of the turbulence properties dictionary.
virtual void correctNut()
Update the eddy-viscosity.
Definition: LRR.C:40
dimensionedScalar Ceps2_
Definition: LRR.H:113
A class for handling words, derived from string.
Definition: word.H:59
dimensionedScalar kappa_
Definition: LRR.H:121
void operator=(const LRR &)=delete
Disallow default bitwise assignment.
BasicTurbulenceModel::transportModel transportModel
Definition: LRR.H:142
virtual tmp< volScalarField > epsilon() const
Return the turbulence kinetic energy dissipation rate.
Definition: LRR.H:185
LRR(const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName=turbulenceModel::propertiesName, const word &type=typeName)
Construct from components.
Definition: LRR.C:54
dimensionedScalar Cref1_
Definition: LRR.H:122
BasicTurbulenceModel::alphaField alphaField
Definition: LRR.H:140
virtual void correct()
Solve the turbulence equations and correct eddy-Viscosity and.
Definition: LRR.C:266
U
Definition: pEqn.H:72
virtual ~LRR()
Destructor.
Definition: LRR.H:169
dimensionedScalar Ceps1_
Definition: LRR.H:112
fileType type(const fileName &, const bool checkVariants=true, const bool followLink=true)
Return the file type: directory or file.
Definition: POSIX.C:488
dimensionedScalar Cmu_
Definition: LRR.H:107
BasicTurbulenceModel::rhoField rhoField
Definition: LRR.H:141
TypeName("LRR")
Runtime type information.
volScalarField alpha(IOobject("alpha", runTime.timeName(), mesh, IOobject::READ_IF_PRESENT, IOobject::AUTO_WRITE), lambda *max(Ua &U, zeroSensitivity))
A class for managing temporary objects.
Definition: PtrList.H:53
dimensionedScalar C1_
Definition: LRR.H:109
volScalarField k_
Definition: LRR.H:128
dimensionedScalar Ceps_
Definition: LRR.H:115
Namespace for OpenFOAM.
Reynolds-stress turbulence model base class.