Use the Particle Counter feature to compute information about particles that are located in a set of selected domains or on a set of selected boundaries. The counter may detect all particles or only the particles released by a specified release feature. Computed variables are the number of particles transmitted, the number of particles transmitted at the final time, the transmission probability, and a logical expression which can be used to filter the rendered particles during results processing.

Select an option from the Release feature list. If All (the default) is selected, the Particle Counter collects information about all particles in the selected domains or boundaries, regardless of how they were released. Alternatively, select a particle release feature from the list, and then only the particles produced by that feature are counted.