Menu

Discussion Forum

New Discussion
Filtrer

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.

Molecular flow, how to calculate pressure inside domain ?

Posted 30 août 2014, 10:35 UTC−4 Fluid & Heat, Computational Fluid Dynamics (CFD) 0 Replies

Ole
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I have a model capillary and vacuum tubes that goes through a all the Knudsen number regimes.
I have pumps and the gas pressure can vary 10^-5 Torr to 100 atm.
But I am interested in the pressure only in the center line of symmetry. I need an estimate not an exact calculation.

My question is how to calculate the pressure inside (not on the walls ) and have vacuum pumps?
The molecular flow model do not give the pressure inside. I have only pressure input and pump speed as known parameters.
0 Replies Last Post 30 août 2014, 10:35 UTC−4
COMSOL Moderator

Hello Ole

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.

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