Menu

Discussion Forum

New Discussion
Filtrer

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 The information provided may be out of date.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.

Combining particle tracing and rotating machinery modules

Posted 29 août 2012, 16:47 UTC−4 Low-Frequency Electromagnetics, Charged Particle Tracing, Computational Fluid Dynamics (CFD), Particle Tracing for Fluid Flow Version 4.3, Version 4.3a 2 Replies

Scott Hug
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

HOw do I combine the particle tracing and rotating machinery modules so that they can run simultaneously in a study? I am attempting to study the particle trajectories in a 3-D mixer (the same mixer design that is used in COMSOL's "Baffled Mixer" model).

When I run a study using both the rotating machinery and particle tracing modules, I will get a message that says Failed to find consistent initial values.
Last time step is not converged..

I never get convergence when I run the teo modules at the same time, but I get convergence no problem if I run either of the modules by itself. Is there a setting I would have to change?
2 Replies Last Post 30 avr. 2014, 13:32 UTC−4
COMSOL Moderator

Hello Scott Hug

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.

Sylvana Garcia
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 17 mai 2013, 14:55 UTC−4
Hi

I am also trying to model particles in a mechanical mixer. I first solved for the velocity field and then ran the Particle Tracing Module. It worked ok for the first time steps, but the particles seemed to freeze once they reached the impeller blades. These boundaries have a bounce boundary condition, so the particles should not freeze. Any tips anyone? Has anyone managed to successfully model particles in a stirring tank?

Thank you.
Hi I am also trying to model particles in a mechanical mixer. I first solved for the velocity field and then ran the Particle Tracing Module. It worked ok for the first time steps, but the particles seemed to freeze once they reached the impeller blades. These boundaries have a bounce boundary condition, so the particles should not freeze. Any tips anyone? Has anyone managed to successfully model particles in a stirring tank? Thank you.
Anna Koontzvitzki
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 30 avr. 2014, 13:32 UTC−4
Hi, Have you found a solution?
Hi, Have you found a solution?

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content