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 The information provided may be out of date.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.
Changing electrode gap and tube diameter in DC glow dicharge
Posted 01.03.2014, 07:28 GMT-5 Plasma Physics Version 4.1, Version 4.2, Version 4.2a, Version 4.3, Version 4.3a, Version 4.3b, Version 4.4 0 Replies
Please login with a confirmed email address before reporting spam
I am simulating DC discharge using DC glow dicharge positive_column_2d.
I am puzzled that when I reduce the distance of electrode gap, for example, to 50mm, the simulation will not converge.
I have tried to increase the resistance value to prevent arc, or change the electron mobility, or change the boundary conditions, but it does not work.
What should I do to make it converge?
Besides, when I increase the tube diameter, it does not converge, either. What's the cause again?
I am longing for suggestions!
Hello Lei Mingda
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.