diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.C b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.C
index d8675f0fd0ec3d3a0fa9eb3607a826d99eb8b3cb..711c41e87b24ba692137e2aaf311779ea486119c 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.C
@@ -95,9 +95,12 @@ Foam::ConeInjection<CloudType>::ConeInjection
     Umag_(DataEntry<scalar>::New("Umag", this->coeffDict())),
     thetaInner_(DataEntry<scalar>::New("thetaInner", this->coeffDict())),
     thetaOuter_(DataEntry<scalar>::New("thetaOuter", this->coeffDict())),
-    parcelDistributionModel_
+    sizeDistribution_
     (
-        distributionModels::distributionModel::New(this->coeffDict().subDict("parcelDistributionModel"), owner.rndGen())
+        distributionModels::distributionModel::New
+        (
+            this->coeffDict().subDict("sizeDistribution"), owner.rndGen()
+        )
     ),
     tanVec1_(vector::zero),
     tanVec2_(vector::zero)
@@ -153,7 +156,7 @@ Foam::ConeInjection<CloudType>::ConeInjection
     Umag_(im.Umag_().clone().ptr()),
     thetaInner_(im.thetaInner_().clone().ptr()),
     thetaOuter_(im.thetaOuter_().clone().ptr()),
-    parcelDistributionModel_(im.parcelDistributionModel_().clone().ptr()),
+    sizeDistribution_(im.sizeDistribution_().clone().ptr()),
     tanVec1_(im.tanVec1_),
     tanVec2_(im.tanVec2_)
 {}
@@ -222,7 +225,7 @@ void Foam::ConeInjection<CloudType>::setProperties
     parcel.U() = Umag_().value(t)*dirVec;
 
     // set particle diameter
-    parcel.d() = parcelDistributionModel_().sample();
+    parcel.d() = sizeDistribution_().sample();
 }
 
 
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.H b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.H
index 60b751bb684a473960524d559eaab57d37c06b13..278b2a1bddc0fecb99ed4645d7517b2caecb38c4 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.H
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.H
@@ -102,7 +102,7 @@ class ConeInjection
         const autoPtr<DataEntry<scalar> > thetaOuter_;
 
         //- Parcel size distribution model model
-        const autoPtr<distributionModels::distributionModel> parcelDistributionModel_;
+        const autoPtr<distributionModels::distributionModel> sizeDistribution_;
 
 
         // Tangential vectors to the direction vector
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjectionMP/ConeInjectionMP.C b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjectionMP/ConeInjectionMP.C
index faff5d7a39bc5457c3c6ec6d254ef052e4729d24..a7645b0bc2b0305240f3e4cc8ae872ef11bdd859 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjectionMP/ConeInjectionMP.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjectionMP/ConeInjectionMP.C
@@ -126,9 +126,12 @@ Foam::ConeInjectionMP<CloudType>::ConeInjectionMP
     Umag_(DataEntry<scalar>::New("Umag", this->coeffDict())),
     thetaInner_(DataEntry<scalar>::New("thetaInner", this->coeffDict())),
     thetaOuter_(DataEntry<scalar>::New("thetaOuter", this->coeffDict())),
-    parcelDistributionModel_
+    sizeDistribution_
     (
-        distributionModels::distributionModel::New(this->coeffDict().subDict("parcelDistributionModel"), owner.rndGen())
+        distributionModels::distributionModel::New
+        (
+            this->coeffDict().subDict("sizeDistribution"), owner.rndGen()
+        )
     ),
     nInjected_(this->parcelsAddedTotal()),
     tanVec1_(positions_.size()),
@@ -193,7 +196,7 @@ Foam::ConeInjectionMP<CloudType>::ConeInjectionMP
     Umag_(im.Umag_().clone().ptr()),
     thetaInner_(im.thetaInner_().clone().ptr()),
     thetaOuter_(im.thetaOuter_().clone().ptr()),
-    parcelDistributionModel_(im.parcelDistributionModel_().clone().ptr()),
+    sizeDistribution_(im.sizeDistribution_().clone().ptr()),
     nInjected_(im.nInjected_),
     tanVec1_(im.tanVec1_),
     tanVec2_(im.tanVec2_)
@@ -268,7 +271,7 @@ void Foam::ConeInjectionMP<CloudType>::setProperties
     parcel.U() = Umag_().value(t)*dirVec;
 
     // set particle diameter
-    parcel.d() = parcelDistributionModel_().sample();
+    parcel.d() = sizeDistribution_().sample();
 }
 
 
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjectionMP/ConeInjectionMP.H b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjectionMP/ConeInjectionMP.H
index d986e86a49b7a9ff321afa5a91cd7c7b22d142f3..806799bb7e07539d8beb3c58376ba6a542cdb7de 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjectionMP/ConeInjectionMP.H
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjectionMP/ConeInjectionMP.H
@@ -109,7 +109,7 @@ class ConeInjectionMP
         const autoPtr<DataEntry<scalar> > thetaOuter_;
 
         //- Parcel size distribution model model
-        const autoPtr<distributionModels::distributionModel> parcelDistributionModel_;
+        const autoPtr<distributionModels::distributionModel> sizeDistribution_;
 
         //- Number of parcels per injector already injected
         mutable label nInjected_;
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/FieldActivatedInjection/FieldActivatedInjection.C b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/FieldActivatedInjection/FieldActivatedInjection.C
index 95209cea066295ad6926ba9aa292652206dd2bc6..03fe941dab4d50019b706065a3761cc6c6aaa963 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/FieldActivatedInjection/FieldActivatedInjection.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/FieldActivatedInjection/FieldActivatedInjection.C
@@ -114,11 +114,11 @@ Foam::FieldActivatedInjection<CloudType>::FieldActivatedInjection
     nParcelsInjected_(positions_.size(), 0),
     U0_(this->coeffDict().lookup("U0")),
     diameters_(positions_.size()),
-    parcelDistributionModel_
+    sizeDistribution_
     (
         distributionModels::distributionModel::New
         (
-            this->coeffDict().subDict("parcelDistributionModel"),
+            this->coeffDict().subDict("sizeDistribution"),
             owner.rndGen()
         )
     )
@@ -126,7 +126,7 @@ Foam::FieldActivatedInjection<CloudType>::FieldActivatedInjection
     // Construct parcel diameters - one per injector cell
     forAll(diameters_, i)
     {
-        diameters_[i] = parcelDistributionModel_->sample();
+        diameters_[i] = sizeDistribution_->sample();
     }
 
     // Determine total volume of particles to inject
@@ -166,7 +166,7 @@ Foam::FieldActivatedInjection<CloudType>::FieldActivatedInjection
     nParcelsInjected_(im.nParcelsInjected_),
     U0_(im.U0_),
     diameters_(im.diameters_),
-    parcelDistributionModel_(im.parcelDistributionModel_().clone().ptr())
+    sizeDistribution_(im.sizeDistribution_().clone().ptr())
 {}
 
 
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/FieldActivatedInjection/FieldActivatedInjection.H b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/FieldActivatedInjection/FieldActivatedInjection.H
index 91a570e4406547be386b4d44a45458de4fabd293..cf5b0239956671abebae90fd87a56d4fd7ea31aa 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/FieldActivatedInjection/FieldActivatedInjection.H
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/FieldActivatedInjection/FieldActivatedInjection.H
@@ -111,7 +111,8 @@ class FieldActivatedInjection
             scalarList diameters_;
 
             //- Parcel size distribution model model
-            const autoPtr<distributionModels::distributionModel> parcelDistributionModel_;
+            const autoPtr<distributionModels::distributionModel>
+                sizeDistribution_;
 
 
 protected:
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InflationInjection/InflationInjection.C b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InflationInjection/InflationInjection.C
index b6107751f3ce951bf9cc82e87edca305345114af..8930fa85e8be3593c3becf148e6760f0d6c8ee72 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InflationInjection/InflationInjection.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InflationInjection/InflationInjection.C
@@ -90,7 +90,7 @@ Foam::label Foam::InflationInjection<CloudType>::parcelsToInject
     (
         1,
         (10*volumeAccumulator_)
-       /CloudType::parcelType::volume(parcelDistributionModel_().minValue())
+       /CloudType::parcelType::volume(sizeDistribution_().minValue())
     );
 
     label iterationNo = 0;
@@ -128,7 +128,7 @@ Foam::label Foam::InflationInjection<CloudType>::parcelsToInject
         {
             if (selfSeed_ && !cellCentresUsed.found(cI))
             {
-                scalar dNew = parcelDistributionModel_().sample();
+                scalar dNew = sizeDistribution_().sample();
 
                 newParticles_.append
                 (
@@ -191,7 +191,7 @@ Foam::label Foam::InflationInjection<CloudType>::parcelsToInject
                 scalar R = sqrt(3.0)*a/(2.0*sqrt(2.0));
                 scalar d = a/(2.0*sqrt(3.0));
 
-                scalar dNew = parcelDistributionModel_().sample();
+                scalar dNew = sizeDistribution_().sample();
                 scalar volNew = CloudType::parcelType::volume(dNew);
 
                 newParticles_.append
@@ -204,7 +204,7 @@ Foam::label Foam::InflationInjection<CloudType>::parcelsToInject
                 );
                 volumeAccumulator_ -= volNew;
 
-                dNew = parcelDistributionModel_().sample();
+                dNew = sizeDistribution_().sample();
                 newParticles_.append
                 (
                     vectorPairScalarPair
@@ -215,7 +215,7 @@ Foam::label Foam::InflationInjection<CloudType>::parcelsToInject
                 );
                 volumeAccumulator_ -= volNew;
 
-                dNew = parcelDistributionModel_().sample();
+                dNew = sizeDistribution_().sample();
                 newParticles_.append
                 (
                     vectorPairScalarPair
@@ -226,7 +226,7 @@ Foam::label Foam::InflationInjection<CloudType>::parcelsToInject
                 );
                 volumeAccumulator_ -= volNew;
 
-                dNew = parcelDistributionModel_().sample();
+                dNew = sizeDistribution_().sample();
                 newParticles_.append
                 (
                     vectorPairScalarPair
@@ -341,11 +341,11 @@ Foam::InflationInjection<CloudType>::InflationInjection
     fraction_(1.0),
     selfSeed_(this->coeffDict().lookupOrDefault("selfSeed", false)),
     dSeed_(SMALL),
-    parcelDistributionModel_
+    sizeDistribution_
     (
         distributionModels::distributionModel::New
         (
-            this->coeffDict().subDict("parcelDistributionModel"),
+            this->coeffDict().subDict("sizeDistribution"),
             owner.rndGen()
         )
     )
@@ -409,7 +409,7 @@ Foam::InflationInjection<CloudType>::InflationInjection
     fraction_(im.fraction_),
     selfSeed_(im.selfSeed_),
     dSeed_(im.dSeed_),
-    parcelDistributionModel_(im.parcelDistributionModel_().clone().ptr())
+    sizeDistribution_(im.sizeDistribution_().clone().ptr())
 {}
 
 
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InflationInjection/InflationInjection.H b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InflationInjection/InflationInjection.H
index 730c4acec1803b34c85567b536ef7588e8f5c725..ab3f3d182201f948ce5c81407e33aa658b7ea26f 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InflationInjection/InflationInjection.H
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InflationInjection/InflationInjection.H
@@ -108,7 +108,7 @@ class InflationInjection
         scalar dSeed_;
 
         //- Parcel size distribution model model
-        const autoPtr<distributionModels::distributionModel> parcelDistributionModel_;
+        const autoPtr<distributionModels::distributionModel> sizeDistribution_;
 
 
 protected:
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ManualInjection/ManualInjection.C b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ManualInjection/ManualInjection.C
index 5f23df32cc431eec5bc0e5e31a24b115408e0a20..f5255106fdf3659c5d44e395f426165a71e512d2 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ManualInjection/ManualInjection.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ManualInjection/ManualInjection.C
@@ -96,11 +96,11 @@ Foam::ManualInjection<CloudType>::ManualInjection
     injectorTetFaces_(positions_.size(), -1),
     injectorTetPts_(positions_.size(), -1),
     U0_(this->coeffDict().lookup("U0")),
-    parcelDistributionModel_
+    sizeDistribution_
     (
         distributionModels::distributionModel::New
         (
-            this->coeffDict().subDict("parcelDistributionModel"),
+            this->coeffDict().subDict("sizeDistribution"),
             owner.rndGen()
         )
     )
@@ -149,7 +149,7 @@ Foam::ManualInjection<CloudType>::ManualInjection
     // Construct parcel diameters
     forAll(diameters_, i)
     {
-        diameters_[i] = parcelDistributionModel_->sample();
+        diameters_[i] = sizeDistribution_->sample();
     }
 
     // Determine volume of particles to inject
@@ -171,7 +171,7 @@ Foam::ManualInjection<CloudType>::ManualInjection
     injectorTetFaces_(im.injectorTetFaces_),
     injectorTetPts_(im.injectorTetPts_),
     U0_(im.U0_),
-    parcelDistributionModel_(im.parcelDistributionModel_().clone().ptr())
+    sizeDistribution_(im.sizeDistribution_().clone().ptr())
 {}
 
 
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ManualInjection/ManualInjection.H b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ManualInjection/ManualInjection.H
index 215a8da2f15a6e97392c4e2ee7bc617401008992..972995a458896f569a33503ed7f9b26f974eb255 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ManualInjection/ManualInjection.H
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ManualInjection/ManualInjection.H
@@ -83,7 +83,7 @@ class ManualInjection
         const vector U0_;
 
         //- Parcel size distribution model model
-        const autoPtr<distributionModels::distributionModel> parcelDistributionModel_;
+        const autoPtr<distributionModels::distributionModel> sizeDistribution_;
 
 
 protected:
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/PatchInjection/PatchInjection.C b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/PatchInjection/PatchInjection.C
index a762bf3316c83639f75db5fd59cf668e2b2797c4..1f6a2750272fd8b0ce91328ae78524acf592a99f 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/PatchInjection/PatchInjection.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/PatchInjection/PatchInjection.C
@@ -104,11 +104,11 @@ Foam::PatchInjection<CloudType>::PatchInjection
     (
         DataEntry<scalar>::New("flowRateProfile", this->coeffDict())
     ),
-    parcelDistributionModel_
+    sizeDistribution_
     (
         distributionModels::distributionModel::New
         (
-            this->coeffDict().subDict("parcelDistributionModel"),
+            this->coeffDict().subDict("sizeDistribution"),
             owner.rndGen()
         )
     ),
@@ -157,7 +157,7 @@ Foam::PatchInjection<CloudType>::PatchInjection
     parcelsPerSecond_(im.parcelsPerSecond_),
     U0_(im.U0_),
     flowRateProfile_(im.flowRateProfile_().clone().ptr()),
-    parcelDistributionModel_(im.parcelDistributionModel_().clone().ptr()),
+    sizeDistribution_(im.sizeDistribution_().clone().ptr()),
     cellOwners_(im.cellOwners_),
     fraction_(im.fraction_)
 {}
@@ -240,7 +240,7 @@ void Foam::PatchInjection<CloudType>::setProperties
     parcel.U() = U0_;
 
     // set particle diameter
-    parcel.d() = parcelDistributionModel_->sample();
+    parcel.d() = sizeDistribution_->sample();
 }
 
 
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/PatchInjection/PatchInjection.H b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/PatchInjection/PatchInjection.H
index 2245ad8b9cc770ab22aafd9dce2f69702625d0d9..4ee540c7bf1ef1859f70e0f52f3216417d3c4cc5 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/PatchInjection/PatchInjection.H
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/PatchInjection/PatchInjection.H
@@ -86,7 +86,7 @@ class PatchInjection
         const autoPtr<DataEntry<scalar> > flowRateProfile_;
 
         //- Parcel size distribution model model
-        const autoPtr<distributionModels::distributionModel> parcelDistributionModel_;
+        const autoPtr<distributionModels::distributionModel> sizeDistribution_;
 
         //- List of cell labels corresponding to injector positions
         labelList cellOwners_;
diff --git a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties
index 746e73e254c8976167becf42649c5a84e214803a..cd5f1054015aadcef898cff90df72cb035243ae7 100644
--- a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties
+++ b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/coalCloud1Properties
@@ -131,7 +131,7 @@ subModels
         SOI             0;
         positionsFile   "coalCloud1Positions";
         U0              ( 0 -10 0 );
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         RosinRammler;
             RosinRammlerDistribution
diff --git a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties
index 2f97343b5cd372df5025c390cb15dc859996d829..699ce6d46bec35da59157182e49ae7c625dd54af 100644
--- a/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties
+++ b/tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/limestoneCloud1Properties
@@ -107,7 +107,7 @@ subModels
         SOI             0;
         positionsFile   "limestonePositions";
         U0              ( 0 0 0 );
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         RosinRammler;
             RosinRammlerDistribution
diff --git a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/parcelInBox/constant/reactingCloud1Properties b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/parcelInBox/constant/reactingCloud1Properties
index 433b3082fe5c132bd3a63504f0f81769020418e0..60b93e7d13cfce997e0838e53425955154a6af6a 100644
--- a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/parcelInBox/constant/reactingCloud1Properties
+++ b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/parcelInBox/constant/reactingCloud1Properties
@@ -130,7 +130,7 @@ subModels
         SOI             0;
         positionsFile   "reactingCloud1Positions";
         U0              (0 0 0);
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         uniform;
             uniformDistribution
diff --git a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties
index 2eaf9f11d70fbc7aa92ea3be58f3780f84741bd8..e28b21992b5297e596939d684d4b83ebf4d79997 100644
--- a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties
+++ b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties
@@ -133,7 +133,7 @@ subModels
         parcelsPerSecond 1e5;
         U0              (40 0 0);
         flowRateProfile constant 1;
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         general;
             generalDistribution
diff --git a/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/constant/reactingCloud1Properties b/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/constant/reactingCloud1Properties
index 49f09ba2db0721b7b21223e163c233070cdea1c5..ff99c3fba903835933e76540c29aa06ffdc2fcec 100644
--- a/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/constant/reactingCloud1Properties
+++ b/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/constant/reactingCloud1Properties
@@ -131,7 +131,7 @@ subModels
         thetaInner      constant 0;
         thetaOuter      constant 45;
 
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         RosinRammler;
             RosinRammlerDistribution
diff --git a/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/constant/surfaceFilmProperties b/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/constant/surfaceFilmProperties
index 20743a48b8774f1dfbf751d59019a76fda95ead3..9a2aa28a680228d502aafd4b6721eaa9c11da1f2 100644
--- a/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/constant/surfaceFilmProperties
+++ b/tutorials/lagrangian/reactingParcelFilmFoam/hotBoxes/constant/surfaceFilmProperties
@@ -59,7 +59,7 @@ thermoSingleLayerCoeffs
 
         particlesPerParcel  100.0;
 
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         RosinRammler;
             RosinRammlerDistribution
diff --git a/tutorials/lagrangian/reactingParcelFilmFoam/multipleBoxes/constant/reactingCloud1Properties b/tutorials/lagrangian/reactingParcelFilmFoam/multipleBoxes/constant/reactingCloud1Properties
index 4f1f754edbc25ebf1d86e4683685b0f8db873e01..2b4877e8d15362c6c48c3407d9e32062a2ebf2cb 100644
--- a/tutorials/lagrangian/reactingParcelFilmFoam/multipleBoxes/constant/reactingCloud1Properties
+++ b/tutorials/lagrangian/reactingParcelFilmFoam/multipleBoxes/constant/reactingCloud1Properties
@@ -131,7 +131,7 @@ subModels
         thetaInner      constant 0;
         thetaOuter      constant 45;
 
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         RosinRammler;
             RosinRammlerDistribution
diff --git a/tutorials/lagrangian/reactingParcelFilmFoam/multipleBoxes/constant/surfaceFilmProperties b/tutorials/lagrangian/reactingParcelFilmFoam/multipleBoxes/constant/surfaceFilmProperties
index bf07405f41ec682b1074df35c09e5ecb430f1687..7c745789b7503e92cd99aa9207ad7724603fb3c2 100644
--- a/tutorials/lagrangian/reactingParcelFilmFoam/multipleBoxes/constant/surfaceFilmProperties
+++ b/tutorials/lagrangian/reactingParcelFilmFoam/multipleBoxes/constant/surfaceFilmProperties
@@ -61,7 +61,7 @@ thermoSingleLayerCoeffs
 
         particlesPerParcel 100.0;
 
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         RosinRammler;
             RosinRammlerDistribution
diff --git a/tutorials/lagrangian/reactingParcelFoam/evaporationTest/constant/reactingCloud1Properties b/tutorials/lagrangian/reactingParcelFoam/evaporationTest/constant/reactingCloud1Properties
index 93b2bfa516d4a171ed33bd5cf25e99b44a96feb9..823e4111abd34bc55bfe1733f5fadb680990668f 100644
--- a/tutorials/lagrangian/reactingParcelFoam/evaporationTest/constant/reactingCloud1Properties
+++ b/tutorials/lagrangian/reactingParcelFoam/evaporationTest/constant/reactingCloud1Properties
@@ -123,7 +123,7 @@ subModels
         SOI             0;
         positionsFile   "reactingCloud1Positions";
         U0              ( 0 0 0 );
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         uniform;
             uniformDistribution
diff --git a/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/kinematicCloud1Properties b/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/kinematicCloud1Properties
index ad33dc46d3066a92039594d2546e77d34158eecc..4896ab3e80903ff5cb64a237f04745c741f815f8 100644
--- a/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/kinematicCloud1Properties
+++ b/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/kinematicCloud1Properties
@@ -87,7 +87,7 @@ subModels
         SOI             0;
         positionsFile   "kinematicCloud1Positions";
         U0              ( 0 0 0 );
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         RosinRammler;
             RosinRammlerDistribution
diff --git a/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermoCloud1Properties b/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermoCloud1Properties
index 72d096b370af7cc59b016edb3abbf5e7632390bd..451e2419c729370b176395e9327d6242fdf6daf2 100644
--- a/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermoCloud1Properties
+++ b/tutorials/lagrangian/rhoPisoTwinParcelFoam/simplifiedSiwek/constant/thermoCloud1Properties
@@ -106,7 +106,7 @@ subModels
         SOI             0;
         positionsFile   "thermoCloud1Positions";
         U0              ( 0 0 0 );
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         RosinRammler;
             RosinRammlerDistribution
diff --git a/tutorials/lagrangian/steadyReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties b/tutorials/lagrangian/steadyReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties
index 003816f8a7cfd5885f203fb45c9dd8bb1ffd6ee0..1201e969082907e32bc35501f706157b215e6e3f 100644
--- a/tutorials/lagrangian/steadyReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties
+++ b/tutorials/lagrangian/steadyReactingParcelFoam/verticalChannel/constant/reactingCloud1Properties
@@ -144,7 +144,7 @@ subModels
         duration        1; // NOTE: set to 1 for steady state
         U0              (0 40 0);
         flowRateProfile constant 1;
-        parcelDistribution
+        sizeDistribution
         {
             pdfType         general;
             generalDistribution