[Pedro24]

Hello,

I want to create a dynamic set of cells, i.e., which evolves with time.

Example :

I created a Bounding box ( xmin(t), ymin(t) ) ( xmax(t), ymax(t) )

With the function boxToCell, I can define a set "myCellSet" which contains all the cells within the Bounding box (using the "setSet" tools). But I want that this set of cells evolves with time which means that i must include this operation in my solver "myInterFoam.C" (for example) :

At the timestep 1, "myCellSet" contains all cells in (xmin(1) ymin(1)) (xmax(1) ymax(1)

At the timestep 2, "myCellSet" contains all cells in (xmin(2) ymin(2)) (xmax(2) ymax(2))

....

My problem is that i created successfully a "dynamic" bounding box but i can't create a topoSet containing the cell labels of my bounding box.

How can I create at each time step this topoSet ?

Thank you

Pierre