diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/orderedPhasePair/orderedPhasePair.C b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/orderedPhasePair/orderedPhasePair.C
index 8023b9fd2b..69438250f3 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/orderedPhasePair/orderedPhasePair.C
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/orderedPhasePair/orderedPhasePair.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -81,10 +81,4 @@ Foam::word Foam::orderedPhasePair::otherName() const
 }
 
 
-Foam::tmp<Foam::volScalarField> Foam::orderedPhasePair::E() const
-{
-    return phase1().fluid().E(*this);
-}
-
-
 // ************************************************************************* //
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/orderedPhasePair/orderedPhasePair.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/orderedPhasePair/orderedPhasePair.H
index 40b1e0bf3f..cfa7056d09 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/orderedPhasePair/orderedPhasePair.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/orderedPhasePair/orderedPhasePair.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -79,9 +79,6 @@ public:
 
         //- Other pair name
         virtual word otherName() const;
-
-        //- Aspect ratio
-        virtual tmp<volScalarField> E() const;
 };
 
 
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/phasePair/phasePair.C b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/phasePair/phasePair.C
index 3e4123a335..566d392cbd 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/phasePair/phasePair.C
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/phasePair/phasePair.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -196,11 +196,7 @@ Foam::tmp<Foam::volScalarField> Foam::phasePair::Ta() const
 
 Foam::tmp<Foam::volScalarField> Foam::phasePair::E() const
 {
-    FatalErrorInFunction
-        << "Requested aspect ratio of the dispersed phase in an unordered pair"
-        << exit(FatalError);
-
-    return phase1();
+    return dispersed().fluid().E(*this);
 }
 
 
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/phasePair/phasePair.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/phasePair/phasePair.H
index d2ee205a6b..0e3d477898 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/phasePair/phasePair.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phasePair/phasePair/phasePair.H
@@ -136,7 +136,7 @@ public:
         tmp<volScalarField> Ta() const;
 
         //- Aspect ratio
-        virtual tmp<volScalarField> E() const;
+        tmp<volScalarField> E() const;
 
         // Access