How to simulate "multi-region" flow in a single pipe

Excercise · November 15, 2019, 05:10

Hello, everyone. I'm a beginer of OpenFOAM. I want to know how to simulate "multi-region" flow in a single pipe .
As shown in the figure, there are two adsorption regions and one free region. How can I divide regions and set their boundary conditions in OpenFOAM？Thank you!
This figure is from the article Cui, J., Sang, Q., Li, Y., Yin, C., Li, Y., Dong, M. (2017). Liquid permeability of organic nanopores in shale: Calculation and analysis. Fuel, 202, 426-434.

Excercise · November 18, 2019, 10:17

I am using simpleFoam to simulate single-phase flow, but what should I do with the "multi region" in a single tube? It seems that I can only simulate free region by simpleFoam. How can I simulate both free region and adsorped region？Thank you

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November 18, 2019, 10:17		#2
Excercise New Member Excercise Join Date: Feb 2019 Posts: 11 Rep Power: 7	I am using simpleFoam to simulate single-phase flow, but what should I do with the "multi region" in a single tube? It seems that I can only simulate free region by simpleFoam. How can I simulate both free region and adsorped region？Thank you