CAD: COMSOL - Particle Tracing Module

CAD: COMSOL -  Particle Tracing Module
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The Particle Tracing Module extends the functionality of the COMSOL environment for computing the trajectory of particles in a fluid or electromagnetic field, including particle-particle, fluid-particle, and particle-field interactions. It includes the following physics interfaces.

  • Mathematical Particle Tracing
    • Specify the equations of motion using massless, Newtonian, Lagrangian, or Hamiltonian formulations.
    • Complete freedom over the equations makes it possible to model ray tracing for example
  • Charged Particle Tracing
    • Use this interface to model ion and electron trajectories in electric and magnetic fields
    • This interface make it easy to define electric, magnetic and collisional forces.
  • Particle tracing for Fluid Flow
    • Use this interface to model microscopic and macroscopic particles in a fluid
    • Includes drag, gravitational, dielectrophoretic, acoustophoretic and many other forces.

 For visulatization of the results, two new plot types are available:

  • Poincare Map: You can use a Poincare Map plot for 2D and 3D models to visualize particle trajectories in a section that is transversal to the particle trajectories.
  • Phase Portrait: You can use a Phase Portrait plot for 2D models to visulalize large data sets of particle trajectories. A phase portriat is a geometric representation of the particle trajectories in the phase plane.

All of the interfaces provide many different ways of releasing particles, either on the boundary or domain level. Particles can also be released at multiple deifferent times. There are several options available for describing how the particles interact with the wall, including specular reflection. The interfaces can all be used with COMSOL Mulitphysics but tracing charged particles benefits from the AC/DC Module because it makes it possible to model complex alternating or direct current systems. Similarily, tracing particles ina fluid system benefits from the CFD Module or the Microfluidics Module due to the number of advanced fluid flow features available in those modules.

Note: To use any of the COMSOL Modules, a COMSOL Multiphysics Base License pass is required. All module software is included with the COMSOL Multiphysics download file, which means you need to download only once.

Licensing Requirements or Restrictions

  • Access is authorized within the geographic boundaries of Canada only.
  • Use of this design tool is restricted to university research only.
  • Faculty with a Professor Research Subscription receive access that allows you, your students, and your research staff to access COMSOL software.
  • Five concurrent use instances per tool from the subscriber’s research team, up to the limits of the available licenses in the shared pool.
  • Access for one year.
  • Acceptance of the vendor licenses terms, including the Academic Addendum, on first use.

For more information, contact the Licensing Administrator at or call 613-530-4787.

Acknowledging CMC

If your research benefits from products and services provided by CMC Microsystems, please acknowledge this support in any publications about your work. For more information, please visit Acknowledge CMC.