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.

Moving porous matrix in Two-phase Darcy's law

Please login with a confirmed email address before reporting spam

Hi,

I am modeling two-phase flow in porous material. What I want to see as a result is the interface between the two fluids and the pressure. For now I have been using Laminar Two-phase Flow mechanics with phase field method to show the interface between the fluids. I haven't added the porous matrix yet. The problem is that my porous matrix has to move in "y" direction. I tried to model that as a volume force but I am not sure how accurate it is.

My question is - Can I reduce the Navier-stokes equations to Darcy's law in the Coefficient form PDE interface and represent the moving porous matrix as just a volume force? Or can I model this using the Two-phase Darcy's law interface? And then the question is how to model the moving porous matrix.

Thank you in advance

1 Reply Last Post 24.08.2014, 03:03 GMT-4
COMSOL Moderator

Hello Andrey Ingilizov

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.


Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 24.08.2014, 03:03 GMT-4
Hi Andrey,
I'm also trying to simulate a two-phase flow. Can you give me a clue on the boundary setting? What kind of boundary do you use for saturation?
Hi Andrey, I'm also trying to simulate a two-phase flow. Can you give me a clue on the boundary setting? What kind of boundary do you use for saturation?

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.