ANSYS Fluent can track the motion of particles through a fluid using the Discrete Phase Model (DPM). In the most basic approach to implementing particles in a CFD analysis the user specifies: injection location, speed, mass flow rate, particle size & material.
Particles can interact with boundary walls with options: reflection, escape, trapping, sliding, or forming a film.
DPM offers an impressive range of advanced capabilities, including:
- Random effects of small-scale turbulent eddies
- Particle size distribution
- Two-way interaction where particles influence flow
- Particle-particle interaction for dense populations
- Particle heat transfer and vaporization/boiling of droplets & bubbles
“Particle Tracks” is the primary tool to postprocess particle behavior. In addition to creating a graphical display of particle paths, this tool offers a powerful option to quantify particle behavior. From the Particle Tracks menu, activate Report Type -> Summary, and Report To -> Console. The text interface will report statistics for individual boundaries where particles exit the system, including Particle Count, Elapsed Time and Mass Flow.