Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Particle tracing with mass
Posted 11 avr. 2011, 18:04 UTC−4 Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.1 0 Replies
Please login with a confirmed email address before reporting spam
I have a problem with particle tracing with mass.
I would like to simulate a system of particles with micrometer radius, subject to weak forces.
The forces are calculated with a Stationary studio.
The “particle tracing with mass” post-processing works correctly with a particle with a radius bigger than 25-50 micrometer (therefore with a relative “big” mass). With a radius having these values I can see the tracing of the particles for a time of 0,5 second with only 1000 iteration.
If I reduce the radius, thus the mass of the particles, the simulation really slow down and it need more than 10.000 iteration to have a tracing of few millisecond.
I would like to increase the tracing total time of the micrometer radius particle without increasing too much the number of iteration.
Is it possible? I have changed the relative tolerance, and if I increase it too much (e.g. 0.1) the solution is non correct.
What could I do? Is it possible to set up a total tracing time?
T hank you very much.
Nic
Hello Nicola Bettin
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.