ENH: InjectedParticleDistributionInjection model - added protection for the...

ENH: InjectedParticleDistributionInjection  model - added protection for the case of zero particles; updated tutorial scripts.  See #363

src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/InjectedParticleDistributionInjection/InjectedParticleDistributionInjection.C

@@ -384,6 +384,11 @@ Foam::InjectedParticleDistributionInjection<CloudType>::parcelsToInject
     nParcelsInjected_ += returnReduce(nParcelsInjected0_, sumOp<label>());
     nParcelsInjected0_ = 0;
 
+    if (startTime_.empty() || this->volumeTotal_ < ROOTVSMALL)
+    {
+        return 0;
+    }
+
     scalar targetVolume = 0;
     forAll(startTime_, injectori)
     {

tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianDistributionInjection/Allrun

@@ -25,7 +25,7 @@ copyLagrangianData()
 
     if [ -z $latestTime ]
     then
-        echo "Error: unable to find Lagrangian data in case $eulerianCase"
+        echo "Error: unable to find Lagrangian data in case $dir"
         exit 1
     fi
 
@@ -37,6 +37,7 @@ copyLagrangianData()
         \cp -r $dir 0
     else
         echo "Error: unable to find Lagrangian data in case $dir"
+        exit 1
     fi
 }
 

tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianParticleInjection/Allrun

@@ -25,7 +25,7 @@ copyLagrangianData()
 
     if [ -z $latestTime ]
     then
-        echo "Error: unable to find Lagrangian data in case $eulerianCase"
+        echo "Error: unable to find Lagrangian data in case $dir"
         exit 1
     fi
 
@@ -37,6 +37,7 @@ copyLagrangianData()
         \cp -r $dir 0
     else
         echo "Error: unable to find Lagrangian data in case $dir"
+        exit 1
     fi
 }