The Relation Between Dissipation and Memory in Two-Fluid Displacements in Disordered Media

The Relation Between Dissipation and Memory in Two-Fluid Displacements in Disordered Media

Holtzman, R., Dentz, M., Planet, R., & Ortín, J.

Flow in porous media is controlled by the fluid’s energy and its dissipation. Despite the crucial importance of the knowledge of energy dissipation, evaluating it remains a daunting challenge. We present a novel framework: quasistatic displacements in a Hele-Shaw cell with gap thickness modulations. We use it to describe how the properties of the medium affect dissipation and show that even for very slow driving rates, the viscous energy (related to rapid fluid motion) is still noticeable.

Geophysical Research Letters, 50, e2023GL104073 (Open Access)
Corresponding Author: Ran Holtzman

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