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 The information provided may be out of date.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.

How to simulate a transient process of filling a natural gas tank with absorbents inside

Please login with a confirmed email address before reporting spam

I hope people who had experience with filling a tank with compressible gas would like to share their experience about how to set the boundary conditions and solver settings. Because it only has a inlet, no outlet, it makes simulation too difficult to converge at each time step.

I used Brinkman equation( br) for flow in the porous media, Heat Transfer in Porous Media (ht) for heat transfer with a source term which is the generated heat due to adsorption and an equation of kinetic of sorption. When I set inlet condition as a constant pressure, such as 3.5 MPa (I have used step function), its time steps were so small and stopped at a certain time step and never go further.

I really appreciate if anyone would like to give me some advice. Thanks ahead.

0 Replies Last Post 28 set 2012, 18:24 GMT-4
COMSOL Moderator

Hello Cindy Zhang

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.