[parradux]

Hi,

I have a massless injection at a surface. I would like to measure the concentration of this injection by dividing my injection site into N sample space (such as 1x1 mm) and finding the amount of particles in that region.

Is there a tool that will help me do this?

Better yet here is what I want to copy:

Statistical sampling methods are used to quantitatively describe
and compare the mixing quality inferred from the particle
tracking for different power-law indices. The cross-sectional
flow area at the end of each mixer element is divided into
N =1916 small squares of 1mm×1mm. The number of particles
within each sample square is counted. The particle concentration
ci is the particle number in the ith square.