diff --git a/src/OpenFOAM/fields/Fields/scalarField/scalarField.C b/src/OpenFOAM/fields/Fields/scalarField/scalarField.C
index 75af8d2b94..c7f151c90d 100644
--- a/src/OpenFOAM/fields/Fields/scalarField/scalarField.C
+++ b/src/OpenFOAM/fields/Fields/scalarField/scalarField.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           |
+    \\  /    A nd           | Copyright (C) 2019 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
                             | Copyright (C) 2011-2017 OpenFOAM Foundation
@@ -161,7 +161,9 @@ UNARY_FUNCTION(scalar, scalar, y1)
 UNARY_FUNCTION(scalar, scalar, degToRad)
 UNARY_FUNCTION(scalar, scalar, radToDeg)
 UNARY_FUNCTION(scalar, scalar, atmToPa)
+UNARY_FUNCTION(scalar, scalar, barToPa)
 UNARY_FUNCTION(scalar, scalar, paToAtm)
+UNARY_FUNCTION(scalar, scalar, paToBar)
 
 
 #define BesselFunc(func)                                                       \
diff --git a/src/OpenFOAM/fields/Fields/scalarField/scalarField.H b/src/OpenFOAM/fields/Fields/scalarField/scalarField.H
index 07dcc34250..db6e2e98ba 100644
--- a/src/OpenFOAM/fields/Fields/scalarField/scalarField.H
+++ b/src/OpenFOAM/fields/Fields/scalarField/scalarField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           |
+    \\  /    A nd           | Copyright (C) 2019 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
                             | Copyright (C) 2011-2017 OpenFOAM Foundation
@@ -139,7 +139,9 @@ UNARY_FUNCTION(scalar, scalar, y1)
 UNARY_FUNCTION(scalar, scalar, degToRad)
 UNARY_FUNCTION(scalar, scalar, radToDeg)
 UNARY_FUNCTION(scalar, scalar, atmToPa)
+UNARY_FUNCTION(scalar, scalar, barToPa)
 UNARY_FUNCTION(scalar, scalar, paToAtm)
+UNARY_FUNCTION(scalar, scalar, paToBar)
 
 #define BesselFunc(func)                                            \
 void func(scalarField& Res, const int n, const UList<scalar>& sf);  \
diff --git a/src/OpenFOAM/global/constants/mathematical/mathematicalConstants.H b/src/OpenFOAM/global/constants/mathematical/mathematicalConstants.H
index 28f78b9941..50032e7d9c 100644
--- a/src/OpenFOAM/global/constants/mathematical/mathematicalConstants.H
+++ b/src/OpenFOAM/global/constants/mathematical/mathematicalConstants.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           |
+    \\  /    A nd           | Copyright (C) 2017 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
                             | Copyright (C) 2011-2016 OpenFOAM Foundation
diff --git a/src/OpenFOAM/global/unitConversion/unitConversion.H b/src/OpenFOAM/global/unitConversion/unitConversion.H
index c5f40d5359..4687f93037 100644
--- a/src/OpenFOAM/global/unitConversion/unitConversion.H
+++ b/src/OpenFOAM/global/unitConversion/unitConversion.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           |
+    \\  /    A nd           | Copyright (C) 2017-2019 OpenCFD Ltd.
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
                             | Copyright (C) 2011 OpenFOAM Foundation
@@ -99,12 +99,25 @@ inline constexpr scalar atmToPa(const scalar atm) noexcept
     return (atm*101325.0);
 }
 
-//- Conversion from atm to Pa
+//- Conversion from bar to Pa
+inline constexpr scalar barToPa(const scalar bar) noexcept
+{
+    return (bar*100000.0);
+}
+
+
+//- Conversion from Pa to atm
 inline constexpr scalar paToAtm(const scalar pa) noexcept
 {
     return (pa/101325.0);
 }
 
+//- Conversion from Pa to bar
+inline constexpr scalar paToBar(const scalar pa) noexcept
+{
+    return (pa/100000.0);
+}
+
 
 //- User literal for degrees to radians conversion (integers)
 inline constexpr scalar operator "" _deg(unsigned long long int deg) noexcept