[Industrial_CFD]

I would like to know if it is possible to use a step function to help me sum values above a cell's "y" coordinate in a subdomain.


Essentially I would like to do the following pseudo code using step(), and sum():


ycor = y coordinate of cell of interest


for i = 1:number of cells in subdomain

if y < ycor, variable = 0
sum(variable)@subdomain


I was hoping to nest a step function inside sum, e.g. sum(step()*variable)@subdomain.


Except I am unsure if this possible using CEL, mainly because I can't envision how to use the cell's current location as a marker in the step function.