diff --git a/src/TurbulenceModels/turbulenceModels/DES/DESModel/DESModelBase.H b/src/TurbulenceModels/turbulenceModels/DES/DESModel/DESModelBase.H
index fa16efe5d1..53119a45cc 100644
--- a/src/TurbulenceModels/turbulenceModels/DES/DESModel/DESModelBase.H
+++ b/src/TurbulenceModels/turbulenceModels/DES/DESModel/DESModelBase.H
@@ -35,8 +35,8 @@ SourceFiles
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef DESModelBase_H
-#define DESModelBase_H
+#ifndef Foam_DESModelBase_H
+#define Foam_DESModelBase_H
 
 #include "className.H"
 #include "tmp.H"
@@ -55,15 +55,18 @@ class DESModelBase
 {
 public:
 
-    //- Constructor
-    DESModelBase()
-    {}
+    //- Runtime type information
+    ClassName("DESModelBase");
+
+    // Constructors
+
+        //- Constructor
+        DESModelBase() noexcept = default;
+
 
     //- Destructor
     virtual ~DESModelBase() = default;
 
-    ClassName("DESModelBase");
-
 
     // Public Member Functions
 
diff --git a/src/TurbulenceModels/turbulenceModels/Make/files b/src/TurbulenceModels/turbulenceModels/Make/files
index 9e9955ab07..a071f000f7 100644
--- a/src/TurbulenceModels/turbulenceModels/Make/files
+++ b/src/TurbulenceModels/turbulenceModels/Make/files
@@ -21,8 +21,8 @@ $(LESfilters)/laplaceFilter/laplaceFilter.C
 $(LESfilters)/anisotropicFilter/anisotropicFilter.C
 
 
-/* Base class for DES models */
 DES/DESModel/DESModelBase.C
+RAS/RASModel/RASModelBase.C
 
 
 /* Turbulence BCs */
diff --git a/src/TurbulenceModels/turbulenceModels/RAS/RASModel/RASModel.H b/src/TurbulenceModels/turbulenceModels/RAS/RASModel/RASModel.H
index ed2a887cf1..3b39795035 100644
--- a/src/TurbulenceModels/turbulenceModels/RAS/RASModel/RASModel.H
+++ b/src/TurbulenceModels/turbulenceModels/RAS/RASModel/RASModel.H
@@ -35,8 +35,8 @@ SourceFiles
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef RASModel_H
-#define RASModel_H
+#ifndef Foam_RASModel_H
+#define Foam_RASModel_H
 
 #include "TurbulenceModel.H"
 
@@ -45,7 +45,28 @@ SourceFiles
 namespace Foam
 {
 
-TemplateName(RASModelBase);
+/*---------------------------------------------------------------------------*\
+                        Class RASModelBase Declaration
+\*---------------------------------------------------------------------------*/
+
+class RASModelBase
+{
+public:
+
+    //- Runtime type information
+    ClassName("RASModelBase");
+
+
+    // Constructors
+
+        //- Constructor
+        RASModelBase() noexcept = default;
+
+
+    //- Destructor
+    virtual ~RASModelBase() = default;
+};
+
 
 /*---------------------------------------------------------------------------*\
                            Class RASModel Declaration
@@ -54,13 +75,12 @@ TemplateName(RASModelBase);
 template<class BasicTurbulenceModel>
 class RASModel
 :
-    public RASModelBaseName,
+    public RASModelBase,
     public BasicTurbulenceModel
 {
-
 protected:
 
-    // Protected data
+    // Protected Data
 
         //- RAS coefficients dictionary
         dictionary RASDict_;
@@ -171,37 +191,37 @@ public:
         // Access
 
             //- Return the lower allowable limit for k (default: SMALL)
-            const dimensionedScalar& kMin() const
+            const dimensionedScalar& kMin() const noexcept
             {
                 return kMin_;
             }
 
             //- Return the lower allowable limit for epsilon (default: SMALL)
-            const dimensionedScalar& epsilonMin() const
+            const dimensionedScalar& epsilonMin() const noexcept
             {
                 return epsilonMin_;
             }
 
             //- Return the lower allowable limit for omega (default: SMALL)
-            const dimensionedScalar& omegaMin() const
+            const dimensionedScalar& omegaMin() const noexcept
             {
                 return omegaMin_;
             }
 
             //- Allow kMin to be changed
-            dimensionedScalar& kMin()
+            dimensionedScalar& kMin() noexcept
             {
                 return kMin_;
             }
 
             //- Allow epsilonMin to be changed
-            dimensionedScalar& epsilonMin()
+            dimensionedScalar& epsilonMin() noexcept
             {
                 return epsilonMin_;
             }
 
             //- Allow omegaMin to be changed
-            dimensionedScalar& omegaMin()
+            dimensionedScalar& omegaMin() noexcept
             {
                 return omegaMin_;
             }
diff --git a/src/TurbulenceModels/turbulenceModels/RAS/RASModel/RASModelBase.C b/src/TurbulenceModels/turbulenceModels/RAS/RASModel/RASModelBase.C
new file mode 100644
index 0000000000..76fb5c6bee
--- /dev/null
+++ b/src/TurbulenceModels/turbulenceModels/RAS/RASModel/RASModelBase.C
@@ -0,0 +1,38 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2022 OpenCFD Ltd.
+-------------------------------------------------------------------------------
+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 "RASModel.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(RASModelBase, 0);
+}
+
+
+// ************************************************************************* //
diff --git a/src/functionObjects/field/resolutionIndex/resolutionIndex.C b/src/functionObjects/field/resolutionIndex/resolutionIndex.C
index 6950e47537..58490e5a07 100644
--- a/src/functionObjects/field/resolutionIndex/resolutionIndex.C
+++ b/src/functionObjects/field/resolutionIndex/resolutionIndex.C
@@ -69,7 +69,7 @@ Foam::functionObjects::resolutionIndex::~resolutionIndex()
 
 bool Foam::functionObjects::resolutionIndex::read(const dictionary& dict)
 {
-    if (mesh_.foundObject<RASModelBaseName>(turbulenceModel::propertiesName))
+    if (mesh_.foundObject<RASModelBase>(turbulenceModel::propertiesName))
     {
         FatalIOErrorInFunction(dict)
             << type() << " " << name()