Bugfix myMovingWallVelocity boundary condition: the face centers of t…

…he (#273)

current mesh should be used at each FSI outer iteration.

Fixes #272

src/boundaryConditions/myMovingWallVelocity/myMovingWallVelocityFvPatchVectorField.C

@@ -99,10 +99,11 @@ namespace Foam
         {
             oldoldFc_ = oldFc_;
             oldFc_ = Fc_;
-            Fc_ = pp.faceCentres();
             myTimeIndex_ = mesh.time().timeIndex();
         }
 
+        Fc_ = pp.faceCentres();
+
         // const pointField& oldPoints = mesh.oldPoints();
         const volVectorField & U = mesh.lookupObject<volVectorField>( dimensionedInternalField().name() );