[bharadwaz]

Hello foamers
I had a small problem in solving chtMultiregionFoam
I need to solve concentric cylinders which should be created using topoSet
as far as in openFoam-6 we can create an only solid cylinder by prescribing
the starting point of axis
the ending point of axis
and the radius of a cylinder

But no option of a hollow cylinder

can anyone help me

Thanks in advance

[RobertHB]

Why do you want a hollow cylinder? The closest you might get is: create two cylinders at the same position but with different diameters. Substract the smaller toposet from the larger. Voila! Annulus. But still no hollow cylinder.

[bharadwaz]

{
name cathode; // name of the set
type cellSet;
action new; // creating a new set or add
source cylinderAnnulusToCell; // using a selection box
sourceInfo
{
p1 ( 0 0 0.03 ); // start point on cylinder axis
p2 ( 0 0 0.07 ); // end point on cylinder axis
outerRadius 0.009 ;
innerRadius 0.004 ;
}
}