How to make three cellzones with topoSet
 

Hello everyone.

I want to create a cellZone such that there is cellZone C1 in cellZone C0 and a cellZone C2 in C1 as shown in Figure 1.

I tried to use tutorial case "twoSimpleRotors" as a reference, but it didn't work.
C1 and C2 cannot be separated and are stuck together.

Below is a topoSetDict that did not work


topoSetDict
**************************************

actions
(
{
name c0;
type cellSet;
action new;
source regionToCell;
sourceInfo
{
insidePoints ((-1.7 0.001 0.001)); // inside points in C0.
}
}
{
name c1;
type cellSet;
action new;
source cellToCell;
sourceInfo
{
set c0;
}
}
{
name c1;
type cellSet;
action invert;
}
{
name c2;
type cellSet;
action new;
source regionToCell;
sourceInfo
{
insidePoints ((0.25 0.001 0.1)); //inside points in C2.
set c1;
}
}
{
name c1;
type cellSet;
action deleate;
source cellToCell;
sourceInfo
{
set c2;
}
}
}


*****************************

I use OpenFOAM v1806.
An inside point in c1 is (-0.6 0.001 0.001).


I am wondering if anyone has any reference materials or solutions.

Thank you.