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.

Gas stratification in a closed tank

Please login with a confirmed email address before reporting spam

Hello,

I ask you for help as I am trying to model the gas stratification of two different gases in a closed environment as the thermal loads applied vary. In my case I have sodium and helium vapor inside a container, which, being inert and with a lower density, will tend to stratify in the upper part of the container. As the temperature begins to rise, the pressure will increase inside the vessel, and the sodium will compress the helium into an ever smaller region of space. I would like to understand how to model the mobile interface between the two gases. I have tried with the 'Deformed Geometry' interface but it gives me error every time I try to simulate the model. I don't know if the problem is due to the fact that it is not possible to couple the Deformed Geometry interface together with non-isothermal flow.

Is there anyone able to solve the problem?

Thank you in advance Ettore



0 Replies Last Post May 11, 2021, 9:18 p.m. EDT
COMSOL Moderator

Hello Ettore Gastaldi

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.