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[Robert Caulk <question640093@xxxxxxxxxxxxxxxxxxxxx>]

Question #640093 on Yade changed:
https://answers.launchpad.net/yade/+question/640093

    Status: Answered => Solved

Robert Caulk confirmed that the question is solved:
Dear Bruno,

Thank you for the detailed response. At the pore scale of geomaterials,
I believe the assumption of local linearity vs pressure gradient in the
pore throat is a safe one since the pore throat is so short compared to
the pores themselves.

Let's say we really want to incorporate compressibility into the pore
throat without going full 3D Navier-Stokes. I believe one option is to
discretize the pore throat and linearize the pressure gradient at each
point along the discretization. The irony is palpable here, as per your
post, this is essentially what we are already doing at a larger scale of
fluid movement through the porous medium. But in my experience, the only
way to approach a non-linear problem numerically is to linearize it in
one way or another.


Cheers,

Robert

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