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 can include all particles or may be restricted to particles corresponding to a specific release feature or a Particle Properties node. 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.

When used with The Particle Tracing for Fluid Flow Interface, the Particle Counter also computes the transmitted mass flow rate when the Particle release specification is set to Specify mass flow rate.

When used with The Charged Particle Tracing Interface, the Particle Counter also computes the transmitted current when the Particle release specification is set to Specify current. If the release feature is a Particle Beam feature in the Charged Particle Tracing interface, additional variables for the average position, velocity, and energy of the transmitted particles are available.

Select an option from the Particle selection list to specify whether the Particle Counter collects information based on Release feature (the default) or Particle properties.

If Release feature is selected, 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 release feature are counted.

If Particle properties is selected from the Particle selection list, select an option from the Released particle properties list. If All (the default) is selected, the Particle Counter collects information about all particles in the selected domains or boundaries, regardless of their particle properties. Alternatively, select a particle properties feature from the list, and then only the particles associated with the selected Particle Properties node are counted.