diff --git a/src/finiteVolume/fields/fvPatchFields/derived/pressureInletOutletParSlipVelocity/pressureInletOutletParSlipVelocityFvPatchVectorField.C b/src/finiteVolume/fields/fvPatchFields/derived/pressureInletOutletParSlipVelocity/pressureInletOutletParSlipVelocityFvPatchVectorField.C
new file mode 100644
index 0000000000..f8002accff
--- /dev/null
+++ b/src/finiteVolume/fields/fvPatchFields/derived/pressureInletOutletParSlipVelocity/pressureInletOutletParSlipVelocityFvPatchVectorField.C
@@ -0,0 +1,204 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     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 3 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, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "pressureInletOutletParSlipVelocityFvPatchVectorField.H"
+#include "addToRunTimeSelectionTable.H"
+#include "fvPatchFieldMapper.H"
+#include "volFields.H"
+#include "surfaceFields.H"
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
+pressureInletOutletParSlipVelocityFvPatchVectorField
+(
+    const fvPatch& p,
+    const DimensionedField<vector, volMesh>& iF
+)
+:
+    mixedFvPatchVectorField(p, iF),
+    phiName_("phi"),
+    rhoName_("rho")
+{
+    refValue() = *this;
+    refGrad() = vector::zero;
+    valueFraction() = 0.0;
+}
+
+
+Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
+pressureInletOutletParSlipVelocityFvPatchVectorField
+(
+    const pressureInletOutletParSlipVelocityFvPatchVectorField& ptf,
+    const fvPatch& p,
+    const DimensionedField<vector, volMesh>& iF,
+    const fvPatchFieldMapper& mapper
+)
+:
+    mixedFvPatchVectorField(ptf, p, iF, mapper),
+    phiName_(ptf.phiName_),
+    rhoName_(ptf.rhoName_)
+{}
+
+
+Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
+pressureInletOutletParSlipVelocityFvPatchVectorField
+(
+    const fvPatch& p,
+    const DimensionedField<vector, volMesh>& iF,
+    const dictionary& dict
+)
+:
+    mixedFvPatchVectorField(p, iF),
+    phiName_(dict.lookupOrDefault<word>("phi", "phi")),
+    rhoName_(dict.lookupOrDefault<word>("rho", "rho"))
+{
+    fvPatchVectorField::operator=(vectorField("value", dict, p.size()));
+    refValue() = *this;
+    refGrad() = vector::zero;
+    valueFraction() = 0.0;
+}
+
+
+Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
+pressureInletOutletParSlipVelocityFvPatchVectorField
+(
+    const pressureInletOutletParSlipVelocityFvPatchVectorField& pivpvf
+)
+:
+    mixedFvPatchVectorField(pivpvf),
+    phiName_(pivpvf.phiName_),
+    rhoName_(pivpvf.rhoName_)
+{}
+
+
+Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::
+pressureInletOutletParSlipVelocityFvPatchVectorField
+(
+    const pressureInletOutletParSlipVelocityFvPatchVectorField& pivpvf,
+    const DimensionedField<vector, volMesh>& iF
+)
+:
+    mixedFvPatchVectorField(pivpvf, iF),
+    phiName_(pivpvf.phiName_),
+    rhoName_(pivpvf.rhoName_)
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::updateCoeffs()
+{
+    if (updated())
+    {
+        return;
+    }
+
+    const label patchI = patch().index();
+
+    const surfaceScalarField& phi =
+        db().lookupObject<surfaceScalarField>(phiName_);
+
+    const fvsPatchField<scalar>& phip =
+        patch().patchField<surfaceScalarField, scalar>(phi);
+
+    tmp<vectorField> n = patch().nf();
+    const Field<scalar>& magS = patch().magSf();
+
+    const volVectorField& U = db().lookupObject<volVectorField>("U");
+
+    vectorField Uc = U.boundaryField()[patchI].patchInternalField();
+    Uc -= n()*(Uc & n());
+
+    if (phi.dimensions() == dimVelocity*dimArea)
+    {
+        refValue() = Uc + n*phip/magS;
+    }
+    else if (phi.dimensions() == dimDensity*dimVelocity*dimArea)
+    {
+        const fvPatchField<scalar>& rhop =
+            patch().lookupPatchField<volScalarField, scalar>(rhoName_);
+
+        refValue() = Uc + n*phip/(rhop*magS);
+    }
+    else
+    {
+        FatalErrorIn
+        (
+            "pressureInletOutletParSlipVelocityFvPatchVectorField::"
+            "updateCoeffs()"
+        )   << "dimensions of phi are not correct" << nl
+            << "    on patch " << this->patch().name()
+            << " of field " << this->dimensionedInternalField().name()
+            << " in file " << this->dimensionedInternalField().objectPath()
+            << exit(FatalError);
+    }
+
+    valueFraction() = 1.0 - pos(phip);
+
+    mixedFvPatchVectorField::updateCoeffs();
+}
+
+
+void Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::write
+(
+    Ostream& os
+) const
+{
+    fvPatchVectorField::write(os);
+    os.writeKeyword("phi") << phiName_ << token::END_STATEMENT << nl;
+    os.writeKeyword("rho") << rhoName_ << token::END_STATEMENT << nl;
+    writeEntry("value", os);
+}
+
+
+// * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //
+
+void Foam::pressureInletOutletParSlipVelocityFvPatchVectorField::operator=
+(
+    const fvPatchField<vector>& pvf
+)
+{
+    fvPatchField<vector>::operator=
+    (
+        valueFraction()*(patch().nf()*(patch().nf() & pvf))
+      + (1 - valueFraction())*pvf
+    );
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    makePatchTypeField
+    (
+        fvPatchVectorField,
+        pressureInletOutletParSlipVelocityFvPatchVectorField
+    );
+}
+
+// ************************************************************************* //
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/pressureInletOutletParSlipVelocity/pressureInletOutletParSlipVelocityFvPatchVectorField.H b/src/finiteVolume/fields/fvPatchFields/derived/pressureInletOutletParSlipVelocity/pressureInletOutletParSlipVelocityFvPatchVectorField.H
new file mode 100644
index 0000000000..afab477fbc
--- /dev/null
+++ b/src/finiteVolume/fields/fvPatchFields/derived/pressureInletOutletParSlipVelocity/pressureInletOutletParSlipVelocityFvPatchVectorField.H
@@ -0,0 +1,191 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+     \\/     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 3 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, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::pressureInletOutletParSlipVelocityFvPatchVectorField
+
+Description
+    Velocity inlet/outlet boundary condition for pressure boundary where the
+    pressure is specified.  zero-gradient is applied for outflow (as defined
+    by the flux) and for inflow the velocity is obtained from the flux with
+    the specified `inletDirection'.
+
+    Slip condition applied tangential to the patch.
+
+SourceFiles
+    pressureInletOutletParSlipVelocityFvPatchVectorField.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef pressureInletOutletParSlipVelocityFvPatchVectorField_H
+#define pressureInletOutletParSlipVelocityFvPatchVectorField_H
+
+#include "fvPatchFields.H"
+#include "mixedFvPatchFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+    Class pressureInletOutletParSlipVelocityFvPatchVectorField Declaration
+\*---------------------------------------------------------------------------*/
+
+class pressureInletOutletParSlipVelocityFvPatchVectorField
+:
+    public mixedFvPatchVectorField
+{
+    // Private data
+
+        word phiName_;
+        word rhoName_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("pressureInletOutletParSlipVelocity");
+
+
+    // Constructors
+
+        //- Construct from patch and internal field
+        pressureInletOutletParSlipVelocityFvPatchVectorField
+        (
+            const fvPatch&,
+            const DimensionedField<vector, volMesh>&
+        );
+
+        //- Construct by mapping given
+        //  pressureInletOutletParSlipVelocityFvPatchVectorField
+        //  onto a new patch
+        pressureInletOutletParSlipVelocityFvPatchVectorField
+        (
+            const pressureInletOutletParSlipVelocityFvPatchVectorField&,
+            const fvPatch&,
+            const DimensionedField<vector, volMesh>&,
+            const fvPatchFieldMapper&
+        );
+
+        //- Construct from patch, internal field and dictionary
+        pressureInletOutletParSlipVelocityFvPatchVectorField
+        (
+            const fvPatch&,
+            const DimensionedField<vector, volMesh>&,
+            const dictionary&
+        );
+
+        //- Construct as copy
+        pressureInletOutletParSlipVelocityFvPatchVectorField
+        (
+            const pressureInletOutletParSlipVelocityFvPatchVectorField&
+        );
+
+        //- Construct and return a clone
+        virtual tmp<fvPatchVectorField> clone() const
+        {
+            return tmp<fvPatchVectorField>
+            (
+                new pressureInletOutletParSlipVelocityFvPatchVectorField
+                (
+                    *this
+                )
+            );
+        }
+
+        //- Construct as copy setting internal field reference
+        pressureInletOutletParSlipVelocityFvPatchVectorField
+        (
+            const pressureInletOutletParSlipVelocityFvPatchVectorField&,
+            const DimensionedField<vector, volMesh>&
+        );
+
+        //- Construct and return a clone setting internal field reference
+        virtual tmp<fvPatchVectorField> clone
+        (
+            const DimensionedField<vector, volMesh>& iF
+        ) const
+        {
+            return tmp<fvPatchVectorField>
+            (
+                new pressureInletOutletParSlipVelocityFvPatchVectorField
+                (
+                    *this,
+                    iF
+                )
+            );
+        }
+
+
+    // Member functions
+
+        // Access
+
+            //- Return the name of rho
+            const word& rhoName() const
+            {
+                return rhoName_;
+            }
+
+            //- Return reference to the name of rho to allow adjustment
+            word& rhoName()
+            {
+                return rhoName_;
+            }
+
+            //- Return the name of phi
+            const word& phiName() const
+            {
+                return phiName_;
+            }
+
+            //- Return reference to the name of phi to allow adjustment
+            word& phiName()
+            {
+                return phiName_;
+            }
+
+
+        //- Update the coefficients associated with the patch field
+        virtual void updateCoeffs();
+
+        //- Write
+        virtual void write(Ostream&) const;
+
+
+    // Member operators
+
+        virtual void operator=(const fvPatchField<vector>& pvf);
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //