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 The information provided may be out of date.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.

mass transfer

Please login with a confirmed email address before reporting spam

Hi! I'm a new user of comsol.
I am trying, at university, to model mass transfer of carbon dioxide through a membrane into a liquid where it reacts.
My model is 1D and I don't know how I can model in comsol the condition of discontinuity at the inteface between membrane and liquid with these conditions:

c,co2liquid interface=c,co2 membrane interface*k

N,membrane interface=N,liquid interface

Thanks a lot for any help.

Dario



2 Replies Last Post 31.07.2012, 03:17 GMT-4
Lechoslaw Krolikowski

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 30.07.2012, 12:31 GMT-4
Hi,
To get discontinuous concentration profile and continuous flux over the interphase you can use the so called
"stiff spring method". See 'Separation Through Dialysis' in the Model Library for example.
Best regards,
Andrzej
Hi, To get discontinuous concentration profile and continuous flux over the interphase you can use the so called "stiff spring method". See 'Separation Through Dialysis' in the Model Library for example. Best regards, Andrzej

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 31.07.2012, 03:17 GMT-4
Thank you for your reply.
I solve the problem.

Hi
Dario
Thank you for your reply. I solve the problem. Hi Dario

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.