[heru]

Imagine the following geometry. I want average of p and v fields for a selected area and volume.


The question is, how can I define an area and a volume?



I know how select a full plane



cuttingPlane
{
type surfaces;
libs ( "libsampling.so" );
writeControl timeStep;
writeInterval 50000;
surfaceFormat vtk;
fields ( U p_rgh alpha.water);
interpolationScheme cellPoint;
surfaces
(
yNormal
{
type cuttingPlane;
planeType pointAndNormal;
pointAndNormalDict
{
basePoint (0 0 0);
normalVector (0 1 0);
}
interpolate true;


}




Once the plane and the volume is selected, how can a get an v/p average of the selected plane each time step?


Thanks