Deep learning for diffusion in porous media

KM Graczyk, D Strzelczyk, M Matyka - Scientific reports, 2023 - nature.com
We adopt convolutional neural networks (CNN) to predict the basic properties of the porous
media. Two different media types are considered: one mimics the sand packings, and the …

Diffusion coefficients and MSD measurements on curved membranes and porous media

A Ledesma-Durán, LH Juárez-Valencia - The European Physical Journal …, 2023 - Springer
We study some geometric aspects that influence the transport properties of particles that
diffuse on curved surfaces. We compare different approaches to surface diffusion based on …

Nanoparticle Taylor dispersion near charged surfaces with an open boundary

A Vilquin, V Bertin, E Raphaël, DS Dean, T Salez… - Physical review …, 2023 - APS
The dispersive spreading of microscopic particles in shear flows is influenced both by
advection and thermal motion. At the nanoscale, interactions between such particles and …

Machine learning predictions of diffusion in bulk and confined ionic liquids using simple descriptors

NS Bobbitt, JP Allers, JA Harvey, D Poe… - … Systems Design & …, 2023 - pubs.rsc.org
Ionic liquids have many intriguing properties and widespread applications such as
separations and energy storage. However, ionic liquids are complex fluids and predicting …

Biharmonic Fick–Jacobs diffusion in narrow channels

G Chacón-Acosta, A León-Ramírez… - Physica A: Statistical …, 2023 - Elsevier
We study the effect of a fourth-order derivative term in the diffusion of Brownian particles
confined to a narrow 2D channel whose longitudinal coordinate is larger than the …

Optimizing Work Extraction in the Presence of an Entropic Potential: An Entropic Stochastic Resonance

SY Ali, P Bauri, D Mondal - The Journal of Physical Chemistry B, 2024 - ACS Publications
We study the nontrivial thermodynamic responses of an overdamped Brownian system
driven by an unbiased driving force when the particle is confined inside a bilobal irregular …

Brownian particles in periodic potentials: Coarse-graining versus fine structure

L Defaveri, E Barkai, DA Kessler - Physical Review E, 2023 - APS
We study the motion of an overdamped particle connected to a thermal heat bath in the
presence of an external periodic potential in one dimension. When we coarse-grain, ie, bin …

Optimal run-and-tumble in slit-like confinement

T Pietrangeli, C Ybert, C Cottin-Bizonne… - Physical Review …, 2024 - APS
Run-and-tumble is a basic model of persistent motion and a motility strategy widespread in
micro-organisms and individual cells. In many natural settings, movement occurs in the …

Interactions enhance dispersion in fluctuating channels via emergent flows

Y Wang, DS Dean, S Marbach… - Journal of Fluid …, 2023 - cambridge.org
Understanding particle motion in narrow channels can guide progress in numerous
applications, from filtration to vascular transport. Thermal or active fluctuations of fluid-filled …

Numerical simulations of confined Brownian-yet-non-Gaussian motion

E Millan, M Lavaud, Y Amarouchene… - The European Physical …, 2023 - Springer
Brownian motion is a central scientific paradigm. Recently, due to increasing efforts and
interests towards miniaturization and small-scale physics or biology, the effects of …