added wall check for particle lambda calc

src/lagrangian/basic/Particle/ParticleI.H

@@ -25,6 +25,7 @@ License
 \*---------------------------------------------------------------------------*/
 
 #include "polyMesh.H"
+#include "wallPolyPatch.H"
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
@@ -46,21 +47,25 @@ inline Foam::scalar Foam::Particle<ParticleType>::lambda
         Sf /= mag(Sf);
         vector Cf = mesh.faceCentres()[facei];
 
-        // move reference point for wall
+        // patch interaction
         if (!cloud_.internalFace(facei))
         {
-            const vector& C = mesh.cellCentres()[celli_];
-            scalar CCf = mag((C - Cf) & Sf);
-            // check if distance between cell centre and face centre
-            // is larger than wallImpactDistance
-            if
-            (
-                CCf
-              > static_cast<const ParticleType&>(*this).wallImpactDistance(Sf)
-            )
+            label patchi = patch(facei);
+            const polyPatch& patch = mesh.boundaryMesh()[patchi];
+
+            // move reference point for wall
+            if (isA<wallPolyPatch>(patch))
             {
-                Cf -= static_cast<const ParticleType&>(*this)
-                    .wallImpactDistance(Sf)*Sf;
+                const vector& C = mesh.cellCentres()[celli_];
+                scalar CCf = mag((C - Cf) & Sf);
+                // check if distance between cell centre and face centre
+                // is larger than wallImpactDistance
+                const ParticleType& p =
+                    static_cast<const ParticleType&>(*this);
+                if (CCf > p.wallImpactDistance(Sf))
+                {
+                    Cf -=p.wallImpactDistance(Sf)*Sf;
+                }
             }
         }
 
@@ -190,21 +195,24 @@ inline Foam::scalar Foam::Particle<ParticleType>::lambda
     Sf /= mag(Sf);
     vector Cf = mesh.faceCentres()[facei];
 
-    // move reference point for wall
+    // patch interaction
     if (!cloud_.internalFace(facei))
     {
-        const vector& C = mesh.cellCentres()[celli_];
-        scalar CCf = mag((C - Cf) & Sf);
-        // check if distance between cell centre and face centre
-        // is larger than wallImpactDistance
-        if
-        (
-            CCf
-          > static_cast<const ParticleType&>(*this).wallImpactDistance(Sf)
-        )
+        label patchi = patch(facei);
+        const polyPatch& patch = mesh.boundaryMesh()[patchi];
+
+        // move reference point for wall
+        if (isA<wallPolyPatch>(patch))
         {
-            Cf -= static_cast<const ParticleType&>(*this)
-                .wallImpactDistance(Sf)*Sf;
+            const vector& C = mesh.cellCentres()[celli_];
+            scalar CCf = mag((C - Cf) & Sf);
+            // check if distance between cell centre and face centre
+            // is larger than wallImpactDistance
+            const ParticleType& p = static_cast<const ParticleType&>(*this);
+            if (CCf > p.wallImpactDistance(Sf))
+            {
+                Cf -=p.wallImpactDistance(Sf)*Sf;
+            }
         }
     }