English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the interplay of pore-scale mixing and network-scale advectionthrough heterogeneous porous media, and its role for the evolution andasymptotic behavior of hydrodynamic dispersion. In a Lagrangian framework, weidentify three fundamental mechanisms of pore-scale mixing that determine largescale particle motion, namely, the smoothing of intra-pore velocity contrasts,the increase of the tortuosity of particle paths, and the setting of a maximumtime for particle transitions. Based on these mechanisms, we derive a theorythat predicts anomalous and normal hydrodynamic dispersion based on thecharacteristic pore length, Eulerian velocity distribution and P\'eclet number.

Pore-scale Mixing and the Evolution of Hydrodynamic Dispersion in Porous Media