Physical Review E

Surfing droplets on nanoscopic films driven by surface acoustic waves
Author(s): N. S. Satpathi, L. Malik, S. Nandy, T. Sujith, L. Y. Yeo, and A. K. Sen
Formation of micron-sized droplets on open surfaces continues to remain a challenge in microfluidics. The problem is even stiffer for highly spreading liquids. Here, we report the formation of microdroplets from a nanoscopically thick film of low surface tension and low-viscosity liquid following it…
[Phys. Rev. E 110, 065108] Published Tue Dec 17, 2024
Fractal dimension of non-Newtonian Hele-Shaw flow subject to Saffman-Taylor instability
Author(s): J. Adriazola, B. Gu, L. J. Cummings, and L. Kondic
We introduce a discrete numerical method based on the diffusion-limited aggregation (DLA) approach to simulate two-fluid Hele-Shaw flow subject to the Saffman-Taylor interfacial instability, in the case where the displaced fluid is non-Newtonian. Focusing on fluids for which the most relevant non-Ne…
[Phys. Rev. E 110, 065107] Published Mon Dec 16, 2024
Microscale transport of ${\mathrm{CO}}_{2}$ and ${\mathrm{H}}_{2}$ storage in shale gas formations
Author(s): Lingfu Liu and Saman A. Aryana
This work focuses on microscale transport behavior of binary mixtures in the context of CO2 and H2 storage in shale gas formations. To this end, a multiple relaxation time lattice Boltzmann (LB) model is implemented to simulate microscale transport behavior. In the LB model, a combined boundary sche…
[Phys. Rev. E 110, 065105] Published Mon Dec 09, 2024
Rare, noise-induced, bypass transition in plane Couette flow can bypass instantons
Author(s): Joran Rolland
This paper presents a study of rare noise-induced transitions from stable laminar flow to transitional turbulence in plane Couette flow, which we will term buildup. We wish to study forced paths that go all the way from laminar to turbulent flow and to focus the investigation on whether these paths …
[Phys. Rev. E 110, 065106] Published Mon Dec 09, 2024
Numerical analysis of binary fluid convection with thermal and solutal lateral gradients
Author(s): Juan Sánchez Umbría and Marta Net
This paper analyzes the influence of laterally enforced solutal gradients on the steady and bifurcated periodic dynamics in binary fluids contained in horizontally heated slots, taking into account the Soret and Dufour effects. Numerical Newton-Krylov continuation techniques to follow the primary an…
[Phys. Rev. E 110, 065104] Published Fri Dec 06, 2024
Pore occupancy of gas hydrate
Author(s): David DiCarlo, Zachary W. Murphy, Kehua You, Peter B. Flemings, and Xiaoli Liu
Methane hydrate deposits are one of the largest fractions of hydrocarbons in the Earth's crust. They are found mainly in ocean sediments, and the configuration of the deposits—at the largest (kilometer) and smallest (micrometer) scales—determines how and when gaseous methane is released. Here, using…
[Phys. Rev. E 110, 065102] Published Wed Dec 04, 2024
Numerical study of thermal nonequilibrium effects on Richtmyer-Meshkov flow driven by a heavy forward-triangular bubble
Author(s): Salman Saud Alsaeed and Satyvir Singh
This paper investigates the thermal nonequilibrium effects on Richtmyer-Meshkov (RM) flow driven by a heavy forward-triangular bubble. Numerical laminar simulations are performed by utilizing the compressible dimensionless Navier-Fourier equations obtained from the Boltzmann-Curtiss transport equati…
[Phys. Rev. E 110, 065103] Published Wed Dec 04, 2024
Rayleigh-Taylor instability in multiple finite-thickness fluid layers
Author(s): Prashant Sharma
We develop a general transfer-matrix formalism for determining the growth rate of the Rayleigh-Taylor instability in a fluid system with spatially varying density and viscosity. We use this formalism to analytically and numerically treat the case of a stratified heterogeneous fluid. We introduce the…
[Phys. Rev. E 110, L063101] Published Tue Dec 03, 2024
Reversible logic with a nanofluidic memristor
Author(s): Sergio Portillo, Javier Cervera, Salvador Mafe, and Patricio Ramirez
A multipore membrane with current-rectifying nanofluidic diodes exhibits memristive properties based on the surface-charge-regulated ionic transport. The neuromorphiclike potentiation of the conductance by voltage pulses provides different functionalities that can be modulated not only by the amplit…
[Phys. Rev. E 110, 065101] Published Mon Dec 02, 2024