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Poisson Ratio Of Water

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The below post is related to an [archived discussion](/forum/thread/135133/poissons-ratio-of-water)

Hi, I'm trying to run the Poroelasticty module (Single-Phase Darcy's Law coupled with Solid Mechanics) to run a reservoir simulation. This module has not caused me any trouble in the past, but some of my models are requiring that I enter a Young's Modulus and Poisson ratio for the pore fluid (liquid water in this case). This hasn't happened to me before and is only happening for select models. Can someone help me prevent this from happening? I've included a link to a previous discussion that addressed this, but I believe it is no longer valid, as the recently incorporated Poroelasticity module is designed to include a pore fluid.


1 Reply Last Post 16.09.2019, 16:33 GMT-4
Henrik Sönnerlind COMSOL Employee

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Posted: 5 years ago 16.09.2019, 16:33 GMT-4

Hi,

Poisson's ratio is needed for the matrix, not for the water. The problem is probably that you have Domain material selected in Poroelastic Storage. Then the material models in Solid Mechanics and Darcy are pointing to the same material.

Regards,
Henrik

-------------------
Henrik Sönnerlind
COMSOL
Hi, Poisson's ratio is needed for the matrix, not for the water. The problem is probably that you have *Domain material* selected in *Poroelastic Storage*. Then the material models in Solid Mechanics and Darcy are pointing to the same material. Regards, Henrik

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