diff --git a/src/TurbulenceModels/turbulenceModels/RAS/kEpsilonPhitF/kEpsilonPhitF.C b/src/TurbulenceModels/turbulenceModels/RAS/kEpsilonPhitF/kEpsilonPhitF.C
index 6f6636a99843c4681f93978520b68423c0c4db93..3f9c95958a5bfbd5da32fd0390a231a2dcc21990 100644
--- a/src/TurbulenceModels/turbulenceModels/RAS/kEpsilonPhitF/kEpsilonPhitF.C
+++ b/src/TurbulenceModels/turbulenceModels/RAS/kEpsilonPhitF/kEpsilonPhitF.C
@@ -5,7 +5,7 @@
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
- Copyright (C) 2019 OpenCFD Ltd.
+ Copyright (C) 2019-2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@@ -121,9 +121,18 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
kEpsilonPhitFBase(),
+ includeNu_
+ (
+ Switch::getOrAddToDict
+ (
+ "includeNu",
+ this->coeffDict_,
+ true
+ )
+ ),
Cmu_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"Cmu",
this->coeffDict_,
@@ -132,7 +141,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
Ceps1a_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"Ceps1a",
this->coeffDict_,
@@ -141,7 +150,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
Ceps1b_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"Ceps1b",
this->coeffDict_,
@@ -150,7 +159,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
Ceps1c_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"Ceps1c",
this->coeffDict_,
@@ -159,7 +168,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
Ceps2_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"Ceps2",
this->coeffDict_,
@@ -168,7 +177,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
Cf1_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"Cf1",
this->coeffDict_,
@@ -177,7 +186,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
Cf2_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"Cf2",
this->coeffDict_,
@@ -186,7 +195,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
CL_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"CL",
this->coeffDict_,
@@ -195,7 +204,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
Ceta_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"Ceta",
this->coeffDict_,
@@ -204,7 +213,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
CT_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"CT",
this->coeffDict_,
@@ -213,7 +222,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
sigmaK_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"sigmaK",
this->coeffDict_,
@@ -222,7 +231,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
sigmaEps_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"sigmaEps",
this->coeffDict_,
@@ -231,7 +240,7 @@ kEpsilonPhitF<BasicTurbulenceModel>::kEpsilonPhitF
),
sigmaPhit_
(
- dimensioned<scalar>::getOrAddToDict
+ dimensionedScalar::getOrAddToDict
(
"sigmaPhit",
this->coeffDict_,
@@ -341,6 +350,7 @@ bool kEpsilonPhitF<BasicTurbulenceModel>::read()
{
if (eddyViscosity<RASModel<BasicTurbulenceModel>>::read())
{
+ includeNu_.readIfPresent("includeNu", this->coeffDict());
Cmu_.readIfPresent(this->coeffDict());
Ceps1a_.readIfPresent(this->coeffDict());
Ceps1b_.readIfPresent(this->coeffDict());
diff --git a/src/TurbulenceModels/turbulenceModels/RAS/kEpsilonPhitF/kEpsilonPhitF.H b/src/TurbulenceModels/turbulenceModels/RAS/kEpsilonPhitF/kEpsilonPhitF.H
index 23f2e5c8025ec73e7fe7681fb0ef9067db96cebd..a0e3140078ede8ffdbfd1ab3bd2874d3fc022d6f 100644
--- a/src/TurbulenceModels/turbulenceModels/RAS/kEpsilonPhitF/kEpsilonPhitF.H
+++ b/src/TurbulenceModels/turbulenceModels/RAS/kEpsilonPhitF/kEpsilonPhitF.H
@@ -5,7 +5,7 @@
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
- Copyright (C) 2019 OpenCFD Ltd.
+ Copyright (C) 2019-2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@@ -34,11 +34,15 @@ Description
compressible flows.
The model is a three-transport-equation linear-eddy-viscosity turbulence
- closure model alongside an elliptic relaxation equation:
- - Turbulent kinetic energy, \c k,
- - Turbulent kinetic energy dissipation rate, \c epsilon,
- - Normalised wall-normal fluctuating velocity scale, \c phit,
- - Elliptic relaxation factor, \c f.
+ closure model alongside an elliptic relaxation equation.
+
+ \heading Input fields
+ \plaintable
+ k | Turbulent kinetic energy [m2/s2]
+ epsilon | Turbulent kinetic energy dissipation rate [m2/s3]
+ phit | Normalised wall-normal fluctuating velocity scale [-]
+ f | Elliptic relaxation factor [1/s]
+ \endplaintable
Reference:
\verbatim
@@ -53,19 +57,20 @@ Description
\verbatim
kEpsilonPhitFCoeffs
{
- Cmu 0.22, // Turbulent viscosity constant
- Ceps1a 1.4, // Model constant for epsilon
- Ceps1b 1.0, // Model constant for epsilon
- Ceps1c 0.05, // Model constant for epsilon
- Ceps2 1.9, // Model constant for epsilon
- Cf1 1.4, // Model constant for f
- Cf2 0.3, // Model constant for f
- CL 0.25, // Model constant for L
- Ceta 110.0, // Model constant for L
- CT 6.0, // Model constant for T
- sigmaK 1.0, // Turbulent Prandtl number for k
- sigmaEps 1.3, // Turbulent Prandtl number for epsilon
- sigmaPhit 1.0, // Turbulent Prandtl number for phit = sigmaK
+ includeNu true; // include nu in (LUU: Eq. 17), see Notes
+ Cmu 0.22; // Turbulent viscosity constant
+ Ceps1a 1.4; // Model constant for epsilon
+ Ceps1b 1.0; // Model constant for epsilon
+ Ceps1c 0.05; // Model constant for epsilon
+ Ceps2 1.9; // Model constant for epsilon
+ Cf1 1.4; // Model constant for f
+ Cf2 0.3; // Model constant for f
+ CL 0.25; // Model constant for L
+ Ceta 110.0; // Model constant for L
+ CT 6.0; // Model constant for T
+ sigmaK 1.0; // Turbulent Prandtl number for k
+ sigmaEps 1.3; // Turbulent Prandtl number for epsilon
+ sigmaPhit 1.0; // Turbulent Prandtl number for phit = sigmaK
}
\endverbatim
@@ -74,6 +79,14 @@ Note
However, the name 'phi' preexisted in OpenFOAM; therefore, this name was
replaced by 'phit' herein.
+ Including \c nu in \c DphitEff even though it is not present in (LUU:Eq. 17)
+ provided higher level of resemblance to benchmarks for the tests considered,
+ particularly for the peak skin friction (yet, pressure-related predictions
+ were unaffected). Users can switch off \c nu in \c DphitEff by using
+ \c includeNu entry in \c kEpsilonPhitFCoeffs as shown above in order to
+ follow the reference paper thereat. \c includeNu is left \c true by default.
+ See GitLab issue #1560.
+
SourceFiles
kEpsilonPhitF.C
@@ -119,6 +132,8 @@ protected:
// Protected Data
+ Switch includeNu_;
+
// Model coefficients
dimensionedScalar Cmu_;
@@ -210,7 +225,7 @@ public:
//- Re-read model coefficients if they have changed
virtual bool read();
- //- Return the effective diffusivity for k
+ //- Return the effective diffusivity for k (LUU:Eq. 3)
tmp<volScalarField> DkEff() const
{
return tmp<volScalarField>
@@ -223,7 +238,7 @@ public:
);
}
- //- Return the effective diffusivity for epsilon
+ //- Return the effective diffusivity for epsilon (LUU:Eq. 4)
tmp<volScalarField> DepsilonEff() const
{
return tmp<volScalarField>
@@ -236,17 +251,18 @@ public:
);
}
- //- Return the effective diffusivity for phit
+ //- Return the effective diffusivity for phit (LUU:Eq. 17)
tmp<volScalarField> DphitEff() const
{
- return tmp<volScalarField>
- (
- new volScalarField
- (
- "DphitEff",
- this->nut_/sigmaPhit_ + this->nu()
- )
- );
+ auto tfld =
+ tmp<volScalarField>::New("DphitEff", this->nut_/sigmaPhit_);
+
+ if (includeNu_)
+ {
+ tfld.ref() += this->nu();
+ }
+
+ return tfld;
}
//- Return the turbulent kinetic energy field