From 6bdcb6f8ceff86746ae2a30f0950a6d804d3aa6a Mon Sep 17 00:00:00 2001
From: Henry Weller <http://cfd.direct>
Date: Fri, 3 Feb 2017 14:29:07 +0000
Subject: [PATCH] lagrangian::NonInertialFrameForce: Use field references
 rather than copies

Patch contributed by Mattijs Janssens
---
 .../NonInertialFrame/NonInertialFrameForce.C          | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/NonInertialFrame/NonInertialFrameForce.C b/src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/NonInertialFrame/NonInertialFrameForce.C
index 9630f242b..17f57041f 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/NonInertialFrame/NonInertialFrameForce.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/NonInertialFrame/NonInertialFrameForce.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -121,7 +121,7 @@ void Foam::NonInertialFrameForce<CloudType>::cacheFields(const bool store)
             )
         )
         {
-            uniformDimensionedVectorField W = this->mesh().template
+            const uniformDimensionedVectorField& W = this->mesh().template
                 lookupObject<uniformDimensionedVectorField>(WName_);
 
             W_ = W.value();
@@ -135,7 +135,7 @@ void Foam::NonInertialFrameForce<CloudType>::cacheFields(const bool store)
             )
         )
         {
-            uniformDimensionedVectorField omega = this->mesh().template
+            const uniformDimensionedVectorField& omega = this->mesh().template
                 lookupObject<uniformDimensionedVectorField>(omegaName_);
 
             omega_ = omega.value();
@@ -149,7 +149,8 @@ void Foam::NonInertialFrameForce<CloudType>::cacheFields(const bool store)
             )
         )
         {
-            uniformDimensionedVectorField omegaDot = this->mesh().template
+            const uniformDimensionedVectorField& omegaDot =
+                this->mesh().template
                 lookupObject<uniformDimensionedVectorField>(omegaDotName_);
 
             omegaDot_ = omegaDot.value();
@@ -163,7 +164,7 @@ void Foam::NonInertialFrameForce<CloudType>::cacheFields(const bool store)
             )
         )
         {
-            uniformDimensionedVectorField centreOfRotation =
+            const uniformDimensionedVectorField& centreOfRotation =
                 this->mesh().template
                 lookupObject<uniformDimensionedVectorField>
                 (