Adds mooseWarning for when a moving OpenMC problem is detected, but the moose mesh is fixed.

closes #1335

Author: cvoorhees15

include/base/OpenMCProblemBase.h

@@ -437,6 +437,12 @@ class OpenMCProblemBase : public CardinalProblem, public PostprocessorInterface
   /// Whether OpenMC cell transforms are being applied to the geometry
   bool hasCellTransform() const;
 
+  /**
+   * Whether the OpenMC geometry is being moved by a cell transform 
+   * or a geometry changing criticality search
+   */ 
+  bool movesOpenMCGeometry() const;
+
   /// Ensure that the IDs of OpenMC objects in UserObjects don't clash
   void checkOpenMCUserObjectIDs() const;
 

src/base/OpenMCCellAverageProblem.C

@@ -569,12 +569,17 @@ OpenMCCellAverageProblem::initialSetup()
 
   getOpenMCUserObjects();
 
-  if (_use_displaced && !_using_skinner && !hasCellTransform())
-    mooseWarning("Your problem has a moving mesh, but you have not provided a 'skinner' or an "
-                 "OpenMCCellTransform user object (both of which move the OpenMC geometry). The "
-                 "[Mesh] will move, but the underlying OpenMC geometry will remain unchanged. "
-                 "Unexpected behavior may occur.");
-
+  if (_use_displaced && !_using_skinner && !movesOpenMCGeometry())
+    mooseWarning("Your problem has a moving mesh, but you have not provided a 'skinner', an "
+                 "OpenMCCellTransform user object, or a geometry changing criticality search "
+                 "(all of which move the OpenMC geometry). The [Mesh] will move, but the "
+                 "underlying OpenMC geometry will remain unchanged. Unexpected behavior may "
+                 "occur.");
+  else if (!_use_displaced && movesOpenMCGeometry())
+    mooseWarning("The OpenMC geometry is being moved (via an OpenMCCellTransform user object "
+                 "or a geometry changing criticality search), but your problem has a fixed "
+                 "mesh. The underlying OpenMC geometry will change, but the [Mesh] will not "
+                 "move. Unexpected behavior may occur.");
   // Coupling re-initialization should be triggered if we have cell transforms which can happen
   // even if the mesh isn't moving or adaptive.
   _need_to_reinit_coupling |= hasCellTransform();

src/base/OpenMCProblemBase.C

@@ -989,6 +989,12 @@ OpenMCProblemBase::hasCellTransform() const
   return !_cell_transform_uos.empty();
 }
 
+bool 
+OpenMCProblemBase::movesOpenMCGeometry() const
+{
+  return hasCellTransform() || (_criticality_search && _criticality_search->changingGeometry());
+}
+
 void
 OpenMCProblemBase::checkOpenMCUserObjectIDs() const
 {