Physical Review E

Author(s): Ludovic Jami, François-Xavier Gauci, Céline Cohen, Xavier Noblin, and Ludovic Keiser

Vascular networks exhibit a remarkable diversity of architectures and transport mechanisms across biological systems. Inspired by embolism propagation in plant xylem, where air invades water-filled conduits under negative pressure, we study air penetration in compliant one-dimensional hydrodynamic n…

[Phys. Rev. E 113, 015103] Published Wed Jan 14, 2026

Author(s): Kai Liu, Wang Xiao, John Lowengrub, Shuwang Li, and Meng Zhao

We investigate the wrinkling dynamics of a long, flat filament immersed in a viscous fluid subjected to compression at a constant rate. Typical wrinkling dynamics proceed through three stages: initiation, development, and relaxation. The first stage, during which high mode perturbations increase exp…

[Phys. Rev. E 113, 015102] Published Tue Jan 13, 2026

Author(s): L. Manfredini and Ö. D. Gürcan

A shell model can be considered as a self-similar chain of interacting triads, where each triad can be interpreted as a nonlinear oscillator that can be mapped to a spinning top. Investigating the relation between phase dynamics and intermittency in such a chain of nonlinear oscillators, it is found…

[Phys. Rev. E 113, 015101] Published Fri Jan 09, 2026

Author(s): Debanik Bhattacharjee, Guy Z. Ramon, and Yaniv Edery

Immiscible two-phase flow in porous media occurs in many processes, such as enhanced oil recovery (EOR), as well as oil spill and soil remediation. These processes involve a fluid displacing another immiscible fluid within the confines of a heterogeneous porous structure. The invasion pattern genera…

[Phys. Rev. E 112, 065108] Published Fri Dec 26, 2025

Author(s): L. Moriconi and G. Saisse

Extensive optical measurements of canonical turbulent pipe flows have revealed the existence of structural boundary states (SBSs)—near-wall low-speed streaks strongly correlated with pairs of counter-rotating quasistreamwise vortices. In this study, we investigate the number fluctuations of these st…

[Phys. Rev. E 112, 065106] Published Mon Dec 22, 2025

Author(s): Daniels Krimans, Steven J. Ruuth, and Seth Putterman

Cavitation is a process where bubbles form and collapse within a fluid with dynamic, spatially varying pressure. This phenomenon can concentrate energy density by 12 orders of magnitude, creating light-emitting plasma or damaging nearby surfaces. A key question in cavitation theory and experiments i…

[Phys. Rev. E 112, 065107] Published Mon Dec 22, 2025

Author(s): Fábio S. Bemfica

We present a demonstration of finite-time gradient blow-ups in Israel-Stewart (IS) theories with 1+1D plane symmetry, mathematically showing the existence of smooth initial data that can evolve into shocks across three regimes: pure bulk viscosity, shear viscosity, and diffusion. Through numerical s…

[Phys. Rev. E 112, 065105] Published Fri Dec 19, 2025

Author(s): Nishanth Murugan and Anubhab Roy

This work investigates the influence of convective transport within a sedimenting drop on the exit time of a colloidal particle. Using Brownian dynamics simulations, we compute exit times for particles originating from various locations inside the drop over a range of Péclet numbers (Pe). The Péclet…

[Phys. Rev. E 112, 065104] Published Wed Dec 17, 2025

Author(s): Rahil N. Valani and David M. Paganin

Active particles are nonequilibrium entities that uptake energy and convert it into self-propulsion. A dynamically rich class of inertial active particles having features of wave-particle coupling and wave memory are walking/superwalking droplets. Such classical, active wave-particle entities (WPEs)…

[Phys. Rev. E 112, 065103] Published Mon Dec 08, 2025

Author(s): Anunay Prasanna, Guillaume T. Bokman, Samuele Fiorini, Armand Sieber, Bratislav Lukić, Daniel Foster, and Outi Supponen

Perfluorohexane is a biocompatible material that serves as a liquid core for acoustically responsive agents in biomedical applications. Despite its relatively widespread usage, there is a lack of experimental data determining its thermodynamic properties. This challenges numerical simulations to pre…

[Phys. Rev. E 112, 065101] Published Mon Dec 01, 2025

Author(s): Írio M. Coutinho and José A. Miranda

In standard rotating Hele-Shaw cell flows, an initially circular fluid drop, surrounded by an outer fluid of negligible density and viscosity, is centered at the rotation axis of the cell. The interplay of centrifugal and surface tension forces leads to the emergence of intricate interfacial pattern…

[Phys. Rev. E 112, 065102] Published Mon Dec 01, 2025

Author(s): Louis-S. Bouchard and Seulgi Moon

Debris flows often exhibit coherent wave structures—shocklike roll waves on steeper slopes and weaker, more sinusoidal dispersive pulses on gentler slopes. Coarse-rich heads raise basal resistance, whereas fines-rich tails lower it; in gentle reaches, small-amplitude pulses can locally transport mom…

[Phys. Rev. E 112, 055112] Published Mon Nov 24, 2025

Author(s): Francisca Guzmán-Lastra and Enkeleida Lushi

Microswimmer locomotion in heterogeneous media is increasingly relevant in biological physics due to the prevalence of microorganisms in complex environments. A model for such porous media is the Brinkman fluid, which accounts for a sparse matrix of stationary obstacles via a linear resistance term …

[Phys. Rev. E 112, 055110] Published Tue Nov 18, 2025

Author(s): Daniel M. C. Hallack, Diogo Bolster, Jeffrey D. Hyman, Matthew R. Sweeney, and Hari S. Viswanathan

We study effective mixing behavior of solutes in steady flows through three-dimensional random fracture networks and find that mixing in these systems is characterized by phenomena distinct from continuous porous media. Network-scale heterogeneity leads to the complex spatio-temporal organization of…

[Phys. Rev. E 112, 055111] Published Tue Nov 18, 2025

Author(s): Timo Schorlepp, Katharina Kormann, Jeremiah Lübke, Tobias Schäfer, and Rainer Grauer

Sampling synthetic turbulent fields as a computationally tractable surrogate for direct numerical simulations (DNS) is an important practical problem in various applications, and allows us to test our physical understanding of the main features of real turbulent flows. Reproducing higher-order Euler…

[Phys. Rev. E 112, 055108] Published Mon Nov 17, 2025

Author(s): Elhoussine Azroul and Ghizlane Diki

This study introduces an approach to extend the Keller and Skalak (KS) theory by integrating the modified Riemann-Liouville fractional derivative. Our focus is on investigating the transition of red blood cells from flipping to stationary motion within shear flows. Expanding upon the predictions out…

[Phys. Rev. E 112, 055109] Published Mon Nov 17, 2025

Author(s): Junchao Sun, Xiaoyan Tang, and Yong Chen

We derive a nonlocal Ostrovsky equation to describe two internal waves generated at distinct locations and times, together with their correlations and interactions. When the initial conditions are P̂T̂ symmetry invariant, the internal waves can either exhibit cnoidal wave structures that are largely…

[Phys. Rev. E 112, 055104] Published Wed Nov 12, 2025

Author(s): Andrew Cleary and Jacob Page

Deep autoencoder neural networks can generate highly accurate, low-order representations of turbulence. We design a family of autoencoders which are a combination of a “dense-block” encoder-decoder structure [Page et al., J. Fluid Mech. 991, A10 (2024)], an "implicit rank minimization" series of lin…

[Phys. Rev. E 112, 055105] Published Wed Nov 12, 2025

Author(s): G. Mederos, J. Arcos, O. Bautista, and F. Méndez

We investigate the Taylor-Aris dispersion resulting from oscillatory squeeze flow (OSF) of an Oldroyd-B viscoelastic fluid in the gap between two hydrophobic disks. The slippage between the fluid and the surfaces of both disks is modeled using a dynamic slip boundary condition, which accounts for pe…

[Phys. Rev. E 112, 055106] Published Wed Nov 12, 2025

Author(s): Mogens T. Levinsen

Walkers are oil drops surfing on a vibrated oil surface and driven by their self-generated capillary waves. Since some of the first measurements on walkers seemingly showed quantum-like behavior, walkers have been considered a model system for a hydrodynamic pilot-wave system. An early experiment sh…

[Phys. Rev. E 112, 055107] Published Wed Nov 12, 2025