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underworldcode / underworld2

underworld2: A parallel, particle-in-cell, finite element code for Geodynamics.
http://www.underworldcode.org/
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Coupled Evolution of Deformation, Pore Fluid Pressure, and Fluid Flow in the thrust-fold mountain belt ？ #678

Open ch9411 opened 11 months ago

ch9411 commented 11 months ago

Is it possible to use underworld to build numerical sandbox modeling and research on the coupled Evolution of Deformation, Pore Fluid Pressure, and Fluid Flow in the thrust-fold mountain belt ？

bknight1 commented 10 months ago

Hi @ch9411, it is possible. We have the stokes flow for the geodynamics, advdiff for temperature evolution and a Darcy solver for fluid flow.

ch9411 commented 10 months ago

Hi @ch9411, it is possible. We have the stokes flow for the geodynamics, advdiff for temperature evolution and a Darcy solver for fluid flow. @bknight1 Thank you for your response. Due to the limited information available on groundwater flow, especially within the context of UW, we would like to inquire about the setup of permeability and fluid pressure boundaries when using Stokes flow. Can the external fluid pressure vary with deformation (in other words, coupling)? We look forward to your reply. Thank you.

bknight1 commented 10 months ago

Yes, the two can be coupled. You can set up each material to have a specific permeability or you can have a mesh/swarm variable that describes the permeability in the model that is used to calculate the fluid flow. The pressure field can be obtained from the Stokes flow and then used in the Darcy solve to determine the groundwater flow.

ch9411 commented 10 months ago

Yes, the two can be coupled. You can set up each material to have a specific permeability or you can have a mesh/swarm variable that describes the permeability in the model that is used to calculate the fluid flow. The pressure field can be obtained from the Stokes flow and then used in the Darcy solve to determine the groundwater flow.

@bknight1 Your response has enlightened me, but as I am a beginner, I am not very familiar with the mechanisms involved. And, we have not found the keywords related to setting the permeability coefficient. Could you please provide a simple example or code? Thank you very much!