diff --git a/src/fvMotionSolver/fvMotionSolvers/displacement/SBRStress/displacementSBRStressFvMotionSolver.C b/src/fvMotionSolver/fvMotionSolvers/displacement/SBRStress/displacementSBRStressFvMotionSolver.C
index a975995f96..cf071879ff 100644
--- a/src/fvMotionSolver/fvMotionSolvers/displacement/SBRStress/displacementSBRStressFvMotionSolver.C
+++ b/src/fvMotionSolver/fvMotionSolvers/displacement/SBRStress/displacementSBRStressFvMotionSolver.C
@@ -134,9 +134,9 @@ void Foam::displacementSBRStressFvMotionSolver::solve()
     diffusivityPtr_->correct();
     pointDisplacement_.boundaryField().updateCoeffs();
 
-    surfaceScalarField Df = diffusivityPtr_->operator()();
+    surfaceScalarField Df(diffusivityPtr_->operator()());
 
-    volTensorField gradCd = fvc::grad(cellDisplacement_);
+    volTensorField gradCd(fvc::grad(cellDisplacement_));
 
     Foam::solve
     (
diff --git a/src/fvMotionSolver/fvMotionSolvers/displacement/interpolation/displacementInterpolationFvMotionSolver.C b/src/fvMotionSolver/fvMotionSolvers/displacement/interpolation/displacementInterpolationFvMotionSolver.C
index 38fee1fb4f..a1b1b9b3d7 100644
--- a/src/fvMotionSolver/fvMotionSolvers/displacement/interpolation/displacementInterpolationFvMotionSolver.C
+++ b/src/fvMotionSolver/fvMotionSolvers/displacement/interpolation/displacementInterpolationFvMotionSolver.C
@@ -180,7 +180,7 @@ displacementInterpolationFvMotionSolver
         zoneCoordinates.last() += SMALL;
 
         // Check if we have static min and max mesh bounds
-        const scalarField meshCoords = points0().component(dir);
+        const scalarField meshCoords(points0().component(dir));
 
         scalar minCoord = gMin(meshCoords);
         scalar maxCoord = gMax(meshCoords);
diff --git a/src/fvMotionSolver/motionDiffusivity/directional/directionalDiffusivity.C b/src/fvMotionSolver/motionDiffusivity/directional/directionalDiffusivity.C
index 6fbc3faea9..147b03d824 100644
--- a/src/fvMotionSolver/motionDiffusivity/directional/directionalDiffusivity.C
+++ b/src/fvMotionSolver/motionDiffusivity/directional/directionalDiffusivity.C
@@ -68,7 +68,7 @@ void Foam::directionalDiffusivity::correct()
 {
     const fvMesh& mesh = mSolver().mesh();
 
-    surfaceVectorField n = mesh.Sf()/mesh.magSf();
+    const surfaceVectorField n(mesh.Sf()/mesh.magSf());
     faceDiffusivity_ == (n & cmptMultiply(diffusivityVector_, n));
 }
 
diff --git a/src/fvMotionSolver/motionDiffusivity/inverseFaceDistance/inverseFaceDistanceDiffusivity.C b/src/fvMotionSolver/motionDiffusivity/inverseFaceDistance/inverseFaceDistanceDiffusivity.C
index 6464f87341..5e9a85acdf 100644
--- a/src/fvMotionSolver/motionDiffusivity/inverseFaceDistance/inverseFaceDistanceDiffusivity.C
+++ b/src/fvMotionSolver/motionDiffusivity/inverseFaceDistance/inverseFaceDistanceDiffusivity.C
@@ -96,7 +96,7 @@ void Foam::inverseFaceDistanceDiffusivity::correct()
     {
         const polyPatch& patch = bdry[iter.key()];
 
-        const vectorField::subField fc = patch.faceCentres();
+        const vectorField::subField fc(patch.faceCentres());
 
         forAll(fc, patchFaceI)
         {
diff --git a/src/fvMotionSolver/motionDiffusivity/motionDirectional/motionDirectionalDiffusivity.C b/src/fvMotionSolver/motionDiffusivity/motionDirectional/motionDirectionalDiffusivity.C
index ea48bda764..7262b81494 100644
--- a/src/fvMotionSolver/motionDiffusivity/motionDirectional/motionDirectionalDiffusivity.C
+++ b/src/fvMotionSolver/motionDiffusivity/motionDirectional/motionDirectionalDiffusivity.C
@@ -90,7 +90,7 @@ void Foam::motionDirectionalDiffusivity::correct()
         );
         D.correctBoundaryConditions();
 
-        surfaceVectorField n = mesh.Sf()/mesh.magSf();
+        const surfaceVectorField n(mesh.Sf()/mesh.magSf());
         faceDiffusivity_ == (n & cmptMultiply(fvc::interpolate(D), n));
     }
     else
diff --git a/src/fvMotionSolver/pointPatchFields/derived/angularOscillatingDisplacement/angularOscillatingDisplacementPointPatchVectorField.C b/src/fvMotionSolver/pointPatchFields/derived/angularOscillatingDisplacement/angularOscillatingDisplacementPointPatchVectorField.C
index 283c1333d9..786c3b6008 100644
--- a/src/fvMotionSolver/pointPatchFields/derived/angularOscillatingDisplacement/angularOscillatingDisplacementPointPatchVectorField.C
+++ b/src/fvMotionSolver/pointPatchFields/derived/angularOscillatingDisplacement/angularOscillatingDisplacementPointPatchVectorField.C
@@ -160,7 +160,7 @@ void angularOscillatingDisplacementPointPatchVectorField::updateCoeffs()
 
     scalar angle = angle0_ + amplitude_*sin(omega_*t.value());
     vector axisHat = axis_/mag(axis_);
-    vectorField p0Rel = p0_ - origin_;
+    vectorField p0Rel(p0_ - origin_);
 
     vectorField::operator=
     (
diff --git a/src/fvMotionSolver/pointPatchFields/derived/angularOscillatingVelocity/angularOscillatingVelocityPointPatchVectorField.C b/src/fvMotionSolver/pointPatchFields/derived/angularOscillatingVelocity/angularOscillatingVelocityPointPatchVectorField.C
index 3cc09833a9..aa9bce36ee 100644
--- a/src/fvMotionSolver/pointPatchFields/derived/angularOscillatingVelocity/angularOscillatingVelocityPointPatchVectorField.C
+++ b/src/fvMotionSolver/pointPatchFields/derived/angularOscillatingVelocity/angularOscillatingVelocityPointPatchVectorField.C
@@ -161,7 +161,7 @@ void angularOscillatingVelocityPointPatchVectorField::updateCoeffs()
 
     scalar angle = angle0_ + amplitude_*sin(omega_*t.value());
     vector axisHat = axis_/mag(axis_);
-    vectorField p0Rel = p0_ - origin_;
+    vectorField p0Rel(p0_ - origin_);
 
     vectorField::operator=
     (
diff --git a/src/fvMotionSolver/pointPatchFields/derived/surfaceDisplacement/surfaceDisplacementPointPatchVectorField.C b/src/fvMotionSolver/pointPatchFields/derived/surfaceDisplacement/surfaceDisplacementPointPatchVectorField.C
index d0aa0c51a9..f2c4ce669c 100644
--- a/src/fvMotionSolver/pointPatchFields/derived/surfaceDisplacement/surfaceDisplacementPointPatchVectorField.C
+++ b/src/fvMotionSolver/pointPatchFields/derived/surfaceDisplacement/surfaceDisplacementPointPatchVectorField.C
@@ -439,14 +439,14 @@ void surfaceDisplacementPointPatchVectorField::updateCoeffs()
 
     const polyMesh& mesh = patch().boundaryMesh().mesh()();
 
-    vectorField currentDisplacement = this->patchInternalField();
+    vectorField currentDisplacement(this->patchInternalField());
 
     // Calculate intersections with surface w.r.t points0.
     vectorField displacement(currentDisplacement);
     calcProjection(displacement);
 
     // offset wrt current displacement
-    vectorField offset = displacement-currentDisplacement;
+    vectorField offset(displacement-currentDisplacement);
 
     // Clip offset to maximum displacement possible: velocity*timestep