lagrangian::StandardWallInteraction: accumulate escaping mass

Do not set accumulated properties to 0 on output

Updates provided by Karl Meredith

src/lagrangian/intermediate/submodels/Kinematic/PatchInteractionModel/StandardWallInteraction/StandardWallInteraction.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -124,6 +124,7 @@ bool Foam::StandardWallInteraction<CloudType>::correct
                 active = false;
                 U = vector::zero;
                 nEscape_++;
+                massEscape_ += p.mass()*p.nParticle();
                 break;
             }
             case PatchInteractionModel<CloudType>::itStick:
@@ -201,16 +202,9 @@ void Foam::StandardWallInteraction<CloudType>::info(Ostream& os)
     if (this->outputTime())
     {
         this->setModelProperty("nEscape", npe);
-        nEscape_ = 0;
-
         this->setModelProperty("massEscape", mpe);
-        massEscape_ = 0.0;
-
         this->setModelProperty("nStick", nps);
-        nStick_ = 0;
-
         this->setModelProperty("massStick", mps);
-        massStick_ = 0.0;
     }
 }