diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/KinematicLookupTableInjection/KinematicLookupTableInjection.C b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/KinematicLookupTableInjection/KinematicLookupTableInjection.C
index c40a95fbac..293fd7d740 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/KinematicLookupTableInjection/KinematicLookupTableInjection.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/KinematicLookupTableInjection/KinematicLookupTableInjection.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -43,6 +43,7 @@ Foam::KinematicLookupTableInjection<CloudType>::KinematicLookupTableInjection
     (
         readScalar(this->coeffDict().lookup("parcelsPerSecond"))
     ),
+    randomise_(readBool(this->coeffDict().lookup("randomise"))),
     injectors_
     (
         IOobject
@@ -87,6 +88,7 @@ Foam::KinematicLookupTableInjection<CloudType>::KinematicLookupTableInjection
     inputFileName_(im.inputFileName_),
     duration_(im.duration_),
     parcelsPerSecond_(im.parcelsPerSecond_),
+    randomise_(im.randomise_),
     injectors_(im.injectors_),
     injectorCells_(im.injectorCells_),
     injectorTetFaces_(im.injectorTetFaces_),
@@ -177,7 +179,16 @@ void Foam::KinematicLookupTableInjection<CloudType>::setPositionAndCell
     label& tetPtI
 )
 {
-    label injectorI = parcelI*injectorCells_.size()/nParcels;
+    label injectorI = 0;
+    if (randomise_)
+    {
+        cachedRandom& rnd = this->owner().rndGen();
+        injectorI = rnd.position<label>(0, injectorCells_.size() - 1);
+    }
+    else
+    {
+        injectorI = parcelI*injectorCells_.size()/nParcels;
+    }
 
     position = injectors_[injectorI].x();
     cellOwner = injectorCells_[injectorI];
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/KinematicLookupTableInjection/KinematicLookupTableInjection.H b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/KinematicLookupTableInjection/KinematicLookupTableInjection.H
index d156f4793a..f17410bc1d 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/KinematicLookupTableInjection/KinematicLookupTableInjection.H
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/KinematicLookupTableInjection/KinematicLookupTableInjection.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -78,6 +78,9 @@ class KinematicLookupTableInjection
         //- Number of parcels per injector - common to all injection sources
         const scalar parcelsPerSecond_;
 
+        //- Flag to indicate to randomise injection positions
+        bool randomise_;
+
         //- List of injectors
         kinematicParcelInjectionDataIOList injectors_;
 
diff --git a/src/lagrangian/intermediate/submodels/Reacting/InjectionModel/ReactingLookupTableInjection/ReactingLookupTableInjection.C b/src/lagrangian/intermediate/submodels/Reacting/InjectionModel/ReactingLookupTableInjection/ReactingLookupTableInjection.C
index 711b3cec7a..1259da7e37 100644
--- a/src/lagrangian/intermediate/submodels/Reacting/InjectionModel/ReactingLookupTableInjection/ReactingLookupTableInjection.C
+++ b/src/lagrangian/intermediate/submodels/Reacting/InjectionModel/ReactingLookupTableInjection/ReactingLookupTableInjection.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -42,6 +42,7 @@ Foam::ReactingLookupTableInjection<CloudType>::ReactingLookupTableInjection
     (
         readScalar(this->coeffDict().lookup("parcelsPerSecond"))
     ),
+    randomise_(readBool(this->coeffDict().lookup("randomise"))),
     injectors_
     (
         IOobject
@@ -86,6 +87,7 @@ Foam::ReactingLookupTableInjection<CloudType>::ReactingLookupTableInjection
     inputFileName_(im.inputFileName_),
     duration_(im.duration_),
     parcelsPerSecond_(im.parcelsPerSecond_),
+    randomise_(im.randomise_),
     injectors_(im.injectors_),
     injectorCells_(im.injectorCells_),
     injectorTetFaces_(im.injectorTetFaces_),
@@ -176,7 +178,16 @@ void Foam::ReactingLookupTableInjection<CloudType>::setPositionAndCell
     label& tetPtI
 )
 {
-    label injectorI = parcelI*injectorCells_.size()/nParcels;
+    label injectorI = 0;
+    if (randomise_)
+    {
+        cachedRandom& rnd = this->owner().rndGen();
+        injectorI = rnd.position<label>(0, injectorCells_.size() - 1);
+    }
+    else
+    {
+        injectorI = parcelI*injectorCells_.size()/nParcels;
+    }
 
     position = injectors_[injectorI].x();
     cellOwner = injectorCells_[injectorI];
diff --git a/src/lagrangian/intermediate/submodels/Reacting/InjectionModel/ReactingLookupTableInjection/ReactingLookupTableInjection.H b/src/lagrangian/intermediate/submodels/Reacting/InjectionModel/ReactingLookupTableInjection/ReactingLookupTableInjection.H
index ef062fd72b..654109c509 100644
--- a/src/lagrangian/intermediate/submodels/Reacting/InjectionModel/ReactingLookupTableInjection/ReactingLookupTableInjection.H
+++ b/src/lagrangian/intermediate/submodels/Reacting/InjectionModel/ReactingLookupTableInjection/ReactingLookupTableInjection.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -81,6 +81,9 @@ class ReactingLookupTableInjection
         //- Number of parcels per injector - common to all injection sources
         const scalar parcelsPerSecond_;
 
+        //- Flag to indicate to randomise injection positions
+        bool randomise_;
+
         //- List of injectors
         reactingParcelInjectionDataIOList injectors_;
 
diff --git a/src/lagrangian/intermediate/submodels/ReactingMultiphase/InjectionModel/ReactingMultiphaseLookupTableInjection/ReactingMultiphaseLookupTableInjection.C b/src/lagrangian/intermediate/submodels/ReactingMultiphase/InjectionModel/ReactingMultiphaseLookupTableInjection/ReactingMultiphaseLookupTableInjection.C
index bd630d879d..179b846caf 100644
--- a/src/lagrangian/intermediate/submodels/ReactingMultiphase/InjectionModel/ReactingMultiphaseLookupTableInjection/ReactingMultiphaseLookupTableInjection.C
+++ b/src/lagrangian/intermediate/submodels/ReactingMultiphase/InjectionModel/ReactingMultiphaseLookupTableInjection/ReactingMultiphaseLookupTableInjection.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -43,6 +43,7 @@ ReactingMultiphaseLookupTableInjection
     (
         readScalar(this->coeffDict().lookup("parcelsPerSecond"))
     ),
+    randomise_(readBool(this->coeffDict().lookup("randomise"))),
     injectors_
     (
         IOobject
@@ -88,6 +89,7 @@ ReactingMultiphaseLookupTableInjection
     inputFileName_(im.inputFileName_),
     duration_(im.duration_),
     parcelsPerSecond_(im.parcelsPerSecond_),
+    randomise_(im.randomise_),
     injectors_(im.injectors_),
     injectorCells_(im.injectorCells_),
     injectorTetFaces_(im.injectorTetFaces_),
@@ -182,7 +184,16 @@ void Foam::ReactingMultiphaseLookupTableInjection<CloudType>::setPositionAndCell
     label& tetPtI
 )
 {
-    label injectorI = parcelI*injectorCells_.size()/nParcels;
+    label injectorI = 0;
+    if (randomise_)
+    {
+        cachedRandom& rnd = this->owner().rndGen();
+        injectorI = rnd.position<label>(0, injectorCells_.size() - 1);
+    }
+    else
+    {
+        injectorI = parcelI*injectorCells_.size()/nParcels;
+    }
 
     position = injectors_[injectorI].x();
     cellOwner = injectorCells_[injectorI];
diff --git a/src/lagrangian/intermediate/submodels/ReactingMultiphase/InjectionModel/ReactingMultiphaseLookupTableInjection/ReactingMultiphaseLookupTableInjection.H b/src/lagrangian/intermediate/submodels/ReactingMultiphase/InjectionModel/ReactingMultiphaseLookupTableInjection/ReactingMultiphaseLookupTableInjection.H
index 7e6c328558..81f41d42de 100644
--- a/src/lagrangian/intermediate/submodels/ReactingMultiphase/InjectionModel/ReactingMultiphaseLookupTableInjection/ReactingMultiphaseLookupTableInjection.H
+++ b/src/lagrangian/intermediate/submodels/ReactingMultiphase/InjectionModel/ReactingMultiphaseLookupTableInjection/ReactingMultiphaseLookupTableInjection.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -84,6 +84,9 @@ class ReactingMultiphaseLookupTableInjection
         //- Number of parcels per injector - common to all injection sources
         const scalar parcelsPerSecond_;
 
+        //- Flag to indicate to randomise injection positions
+        bool randomise_;
+
         //- List of injectors
         reactingMultiphaseParcelInjectionDataIOList injectors_;
 
diff --git a/src/lagrangian/intermediate/submodels/Thermodynamic/InjectionModel/ThermoLookupTableInjection/ThermoLookupTableInjection.C b/src/lagrangian/intermediate/submodels/Thermodynamic/InjectionModel/ThermoLookupTableInjection/ThermoLookupTableInjection.C
index fdc0a3b4a3..682fc9c3ea 100644
--- a/src/lagrangian/intermediate/submodels/Thermodynamic/InjectionModel/ThermoLookupTableInjection/ThermoLookupTableInjection.C
+++ b/src/lagrangian/intermediate/submodels/Thermodynamic/InjectionModel/ThermoLookupTableInjection/ThermoLookupTableInjection.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -43,6 +43,7 @@ Foam::ThermoLookupTableInjection<CloudType>::ThermoLookupTableInjection
     (
         readScalar(this->coeffDict().lookup("parcelsPerSecond"))
     ),
+    randomise_(readBool(this->coeffDict().lookup("randomise"))),
     injectors_
     (
         IOobject
@@ -87,6 +88,7 @@ Foam::ThermoLookupTableInjection<CloudType>::ThermoLookupTableInjection
     inputFileName_(im.inputFileName_),
     duration_(im.duration_),
     parcelsPerSecond_(im.parcelsPerSecond_),
+    randomise_(im.randomise_),
     injectors_(im.injectors_),
     injectorCells_(im.injectorCells_),
     injectorTetFaces_(im.injectorTetFaces_),
@@ -177,7 +179,16 @@ void Foam::ThermoLookupTableInjection<CloudType>::setPositionAndCell
     label& tetPtI
 )
 {
-    label injectorI = parcelI*injectorCells_.size()/nParcels;
+    label injectorI = 0;
+    if (randomise_)
+    {
+        cachedRandom& rnd = this->owner().rndGen();
+        injectorI = rnd.position<label>(0, injectorCells_.size() - 1);
+    }
+    else
+    {
+        injectorI = parcelI*injectorCells_.size()/nParcels;
+    }
 
     position = injectors_[injectorI].x();
     cellOwner = injectorCells_[injectorI];
diff --git a/src/lagrangian/intermediate/submodels/Thermodynamic/InjectionModel/ThermoLookupTableInjection/ThermoLookupTableInjection.H b/src/lagrangian/intermediate/submodels/Thermodynamic/InjectionModel/ThermoLookupTableInjection/ThermoLookupTableInjection.H
index efb83c3614..42c48f290d 100644
--- a/src/lagrangian/intermediate/submodels/Thermodynamic/InjectionModel/ThermoLookupTableInjection/ThermoLookupTableInjection.H
+++ b/src/lagrangian/intermediate/submodels/Thermodynamic/InjectionModel/ThermoLookupTableInjection/ThermoLookupTableInjection.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -80,6 +80,9 @@ class ThermoLookupTableInjection
         //- Number of parcels per injector - common to all injection sources
         const scalar parcelsPerSecond_;
 
+        //- Flag to indicate to randomise injection positions
+        bool randomise_;
+
         //- List of injectors
         kinematicParcelInjectionDataIOList injectors_;