diff --git a/src/finiteVolume/fields/fvPatchFields/derived/turbulentMixingLengthFrequencyInlet/turbulentMixingLengthFrequencyInletFvPatchScalarField.C b/src/finiteVolume/fields/fvPatchFields/derived/turbulentMixingLengthFrequencyInlet/turbulentMixingLengthFrequencyInletFvPatchScalarField.C
new file mode 100644
index 0000000000000000000000000000000000000000..d14d18abe891299dadcc8ea0b4aed12b1a71f9f2
--- /dev/null
+++ b/src/finiteVolume/fields/fvPatchFields/derived/turbulentMixingLengthFrequencyInlet/turbulentMixingLengthFrequencyInletFvPatchScalarField.C
@@ -0,0 +1,161 @@
+/*---------------------------------------------------------------------------*\
+ ========= |
+ \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
+ \\ / O peration |
+ \\ / A nd | Copyright (C) 2006-2007 OpenCFD Ltd.
+ \\/ M anipulation |
+-------------------------------------------------------------------------------
+License
+ This file is part of OpenFOAM.
+
+ OpenFOAM is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2 of the License, or (at your
+ option) any later version.
+
+ OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with OpenFOAM; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "turbulentMixingLengthFrequencyInletFvPatchScalarField.H"
+#include "addToRunTimeSelectionTable.H"
+#include "fvPatchFieldMapper.H"
+#include "surfaceFields.H"
+#include "volFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
+
+turbulentMixingLengthFrequencyInletFvPatchScalarField::
+turbulentMixingLengthFrequencyInletFvPatchScalarField
+(
+ const fvPatch& p,
+ const DimensionedField<scalar, volMesh>& iF
+)
+:
+ fixedValueFvPatchField<scalar>(p, iF),
+ mixingLength_(0.0),
+ kName_("undefined-k")
+{}
+
+turbulentMixingLengthFrequencyInletFvPatchScalarField::
+turbulentMixingLengthFrequencyInletFvPatchScalarField
+(
+ const turbulentMixingLengthFrequencyInletFvPatchScalarField& ptf,
+ const fvPatch& p,
+ const DimensionedField<scalar, volMesh>& iF,
+ const fvPatchFieldMapper& mapper
+)
+:
+ fixedValueFvPatchField<scalar>(ptf, p, iF, mapper),
+ mixingLength_(ptf.mixingLength_),
+ kName_(ptf.kName_)
+{}
+
+turbulentMixingLengthFrequencyInletFvPatchScalarField::
+turbulentMixingLengthFrequencyInletFvPatchScalarField
+(
+ const fvPatch& p,
+ const DimensionedField<scalar, volMesh>& iF,
+ const dictionary& dict
+)
+:
+ fixedValueFvPatchField<scalar>(p, iF, dict),
+ mixingLength_(readScalar(dict.lookup("mixingLength"))),
+ kName_(dict.lookup("k"))
+{}
+
+turbulentMixingLengthFrequencyInletFvPatchScalarField::
+turbulentMixingLengthFrequencyInletFvPatchScalarField
+(
+ const turbulentMixingLengthFrequencyInletFvPatchScalarField& ptf
+)
+:
+ fixedValueFvPatchField<scalar>(ptf),
+ mixingLength_(ptf.mixingLength_),
+ kName_(ptf.kName_)
+{}
+
+turbulentMixingLengthFrequencyInletFvPatchScalarField::
+turbulentMixingLengthFrequencyInletFvPatchScalarField
+(
+ const turbulentMixingLengthFrequencyInletFvPatchScalarField& ptf,
+ const DimensionedField<scalar, volMesh>& iF
+)
+:
+ fixedValueFvPatchField<scalar>(ptf, iF),
+ mixingLength_(ptf.mixingLength_),
+ kName_(ptf.kName_)
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
+
+void turbulentMixingLengthFrequencyInletFvPatchScalarField::updateCoeffs()
+{
+ if (updated())
+ {
+ return;
+ }
+
+ // Lookup Cmu corresponding to the turbulence model selected
+ const dictionary& turbulenceProperties = db().lookupObject<IOdictionary>
+ (
+ "turbulenceProperties"
+ );
+
+ const dictionary& turbulenceCoeffs = turbulenceProperties.subDict
+ (
+ word(turbulenceProperties.lookup("turbulenceModel")) + "Coeffs"
+ );
+
+ scalar Cmu = dimensionedScalar(turbulenceCoeffs.lookup("Cmu")).value();
+ scalar Cmu25 = pow(Cmu, 0.25);
+
+ const fvPatchField<scalar>& kp =
+ patch().lookupPatchField<volScalarField, scalar>(kName_);
+
+ operator==(sqrt(kp)/(Cmu25*mixingLength_));
+
+ fixedValueFvPatchField<scalar>::updateCoeffs();
+}
+
+
+void turbulentMixingLengthFrequencyInletFvPatchScalarField::write
+(
+ Ostream& os
+) const
+{
+ fvPatchField<scalar>::write(os);
+ os.writeKeyword("mixingLength")
+ << mixingLength_ << token::END_STATEMENT << nl;
+ os.writeKeyword("k") << kName_ << token::END_STATEMENT << nl;
+ writeEntry("value", os);
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+makePatchTypeField
+(
+ fvPatchScalarField,
+ turbulentMixingLengthFrequencyInletFvPatchScalarField
+);
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// ************************************************************************* //
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/turbulentMixingLengthFrequencyInlet/turbulentMixingLengthFrequencyInletFvPatchScalarField.H b/src/finiteVolume/fields/fvPatchFields/derived/turbulentMixingLengthFrequencyInlet/turbulentMixingLengthFrequencyInletFvPatchScalarField.H
new file mode 100644
index 0000000000000000000000000000000000000000..621741e05ed3f87ce773eeee8510748bfaf98fc6
--- /dev/null
+++ b/src/finiteVolume/fields/fvPatchFields/derived/turbulentMixingLengthFrequencyInlet/turbulentMixingLengthFrequencyInletFvPatchScalarField.H
@@ -0,0 +1,168 @@
+/*---------------------------------------------------------------------------*\
+ ========= |
+ \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
+ \\ / O peration |
+ \\ / A nd | Copyright (C) 2006-2007 OpenCFD Ltd.
+ \\/ M anipulation |
+-------------------------------------------------------------------------------
+License
+ This file is part of OpenFOAM.
+
+ OpenFOAM is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2 of the License, or (at your
+ option) any later version.
+
+ OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with OpenFOAM; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+ Foam::turbulentMixingLengthDissipationRateInletFvPatchScalarField
+
+Description
+ Calculate omega via the mixing length
+
+ Example of the boundary condition specification:
+ @verbatim
+ inlet
+ {
+ type turbulentMixingLengthFrequencyInlet;
+ mixingLength 0.005; // 5 mm
+ k k; // turbulent k field
+ value uniform 5; // initial value
+ }
+ @endverbatim
+
+SourceFiles
+ turbulentMixingLengthFrequencyInletFvPatchScalarField.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef turbulentMixingLengthFrequencyInletFvPatchScalarField_H
+#define turbulentMixingLengthFrequencyInletFvPatchScalarField_H
+
+#include "fixedValueFvPatchFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+ Class turbulentMixingLengthFrequencyInletFvPatchScalarField Declaration
+\*---------------------------------------------------------------------------*/
+
+class turbulentMixingLengthFrequencyInletFvPatchScalarField
+:
+ public fixedValueFvPatchScalarField
+{
+ // Private data
+
+ //- Turbulent length scale
+ scalar mixingLength_;
+
+ //- Name of the turbulent kinetic energy field
+ word kName_;
+
+
+public:
+
+ //- Runtime type information
+ TypeName("turbulentMixingLengthFrequencyInlet");
+
+
+ // Constructors
+
+ //- Construct from patch and internal field
+ turbulentMixingLengthFrequencyInletFvPatchScalarField
+ (
+ const fvPatch&,
+ const DimensionedField<scalar, volMesh>&
+ );
+
+ //- Construct from patch, internal field and dictionary
+ turbulentMixingLengthFrequencyInletFvPatchScalarField
+ (
+ const fvPatch&,
+ const DimensionedField<scalar, volMesh>&,
+ const dictionary&
+ );
+
+ //- Construct by mapping given
+ // turbulentMixingLengthFrequencyInletFvPatchScalarField
+ // onto a new patch
+ turbulentMixingLengthFrequencyInletFvPatchScalarField
+ (
+ const turbulentMixingLengthFrequencyInletFvPatchScalarField&,
+ const fvPatch&,
+ const DimensionedField<scalar, volMesh>&,
+ const fvPatchFieldMapper&
+ );
+
+ //- Construct as copy
+ turbulentMixingLengthFrequencyInletFvPatchScalarField
+ (
+ const turbulentMixingLengthFrequencyInletFvPatchScalarField&
+ );
+
+ //- Construct and return a clone
+ virtual tmp<fvPatchScalarField> clone() const
+ {
+ return tmp<fvPatchScalarField>
+ (
+ new turbulentMixingLengthFrequencyInletFvPatchScalarField
+ (
+ *this
+ )
+ );
+ }
+
+ //- Construct as copy setting internal field reference
+ turbulentMixingLengthFrequencyInletFvPatchScalarField
+ (
+ const turbulentMixingLengthFrequencyInletFvPatchScalarField&,
+ const DimensionedField<scalar, volMesh>&
+ );
+
+ //- Construct and return a clone setting internal field reference
+ virtual tmp<fvPatchScalarField> clone
+ (
+ const DimensionedField<scalar, volMesh>& iF
+ ) const
+ {
+ return tmp<fvPatchScalarField>
+ (
+ new turbulentMixingLengthFrequencyInletFvPatchScalarField
+ (
+ *this,
+ iF
+ )
+ );
+ }
+
+
+ // Member functions
+
+ //- Update the coefficients associated with the patch field
+ virtual void updateCoeffs();
+
+ //- Write
+ virtual void write(Ostream&) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //