22–25 May 2023
Europe/London timezone

Dispersive transport dynamics in porous media emerge from local correlations

23 May 2023, 12:00
15m
Oral Presentation (MS08) Mixing, dispersion and reaction processes across scales in heterogeneous and fractured media MS08

Speaker

Lucas Goehring (Nottingham Trent University)

Description

Understanding and controlling transport through complex media is central for a plethora of processes ranging from technical to biological applications. Yet, the effect of micro-scale manipulations on macroscopic transport dynamics still poses conceptual conundrums. Here, we will demonstrate the predictive power of a conceptual shift in describing complex media by local micro-scale correlations instead of an assembly of uncorrelated minimal units. Specifically, we will show that the non-linear dependency between microscopic morphological properties and macroscopic transport characteristics in porous media is captured by transport statistics on the level of pore junctions instead of single pores. Probing experimentally and numerically transport through two-dimensional porous media while gradually increasing flow heterogeneity, we find a non-monotonic change in transport efficiency. Using analytic arguments, we built physical intuition on how this non-monotonic dependency emerges from junction statistics. This suggests the value of a shift in perspective towards larger-level structural elements that can broadly affets our understanding of transport within the diversity of complex media.

References

Meigel et al., Nature Communications 13:5885 (2022). DOI:10.1038/s41467-022-33485-5

Participation In-Person
Country United Kingdom
MDPI Energies Student Poster Award No, do not submit my presenation for the student posters award.
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Primary authors

Lucas Goehring (Nottingham Trent University) Mr Felix Meigel (Max Planck Institute for the Physics of Complex Systems) Thomas Darwent (Nottingham Trent University) Mr Leonie Bastin (Max Planck Institute for Dynamics and Self-Organisation) Karen Alim (Max-Planck-Institute for Dynamics and Self-Organization)

Presentation materials

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