Can Darcy's law model pseudo-steady and transient state?

Please login with a confirmed email address before reporting spam

Hi,

Assuming I have a 1 meter long core. Assume permeability is 1 Darcy, and porosity is 0.2. My injection velocity is about 2 cm/s. The outlet has same pressure as atmosphere pressure. So, actually, for water starts from inlet to outlet, it needs about 1/0.02 =50 s to reach the outlet. I want to see how the fluid velocity change between 0-50 s. But COMSOL only gives me one number of velocity. I assume this velocity is the steady state velocity. How can I get the changes of velocity before it reaches to breakthrough?

Another question is, can COMSOL simulate the skin effect near the wellbore by using Darcy's law?

It's most likely I will not get response from this forum. But whoever reads this post and have similar issue as me, we can try to discuss together.

Thanks in advance.


Reply

Please read the discussion forum rules before posting.

Please log in to post a reply.

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.