Issue 37, 2024

Estimating the interfacial permeability for flow into a poroelastic medium

Abstract

Boundary conditions between a porous solid and a fluid has been a long-standing problem in modeling porous media. For deformable poroelastic materials such as hydrogels, the question is further complicated by the elastic stress from the solid network. Recently, an interfacial permeability condition has been developed from the principle of positive energy dissipation on the hydrogel–fluid interface. Although this boundary condition has been used in flow computations and yielded reasonable predictions, it contains an interfacial permeability η as a phenomenological parameter. In this work, we use pore-scale models of flow into a periodic array of solid cylinders or parallel holes to determine η as a function of the pore size and porosity. This provides a means to evaluate the interfacial permeability for a wide range of poroelastic materials, including hydrogels, foams and biological tissues, to enable realistic flow simulations.

Graphical abstract: Estimating the interfacial permeability for flow into a poroelastic medium

Article information

Article type
Communication
Submitted
23 Apr 2024
Accepted
20 Jun 2024
First published
21 Jun 2024

Soft Matter, 2024,20, 7357-7361

Estimating the interfacial permeability for flow into a poroelastic medium

Z. Xu, P. Yue and J. J. Feng, Soft Matter, 2024, 20, 7357 DOI: 10.1039/D4SM00476K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements