Machine learning for rarefied gas transport in vacuum and micro/nano systems: promise, pitfalls, and a verification agendaMachine learning is beginning to influence rarefied-gas modeling at multiple levels, including equation-solving, operator learning, learned collision physics, moment closures, direct simulation Monte…Ehsan Roohi·Jun 12, 2026SaveLearn
Longitudinal particle separationOwing to inertial effects, the flow through a three-dimensional curved duct focuses finite-sized spherical particles in the two-dimensional cross-section onto either stable equilibrium points or…Siluvai Antony Selvan, Rahil N Valani, Brendan Harding et al.·Jun 12, 2026SaveLearn
Linear causality and stability constraints on relativistic second-order magnetohydrodynamicsIn this work, we construct a theoretical framework for relativistic second-order magnetohydrodynamics based on entropy current analysis. The formalism consistently incorporates the relaxation…Yiwei Qiu, Duan She, Defu Hou·Jun 12, 2026SaveLearn
Semi-analytical eddy-viscosity and backscattering closures for 2D geophysical turbulencePhysics-based eddy-viscosity and backscattering closures are widely used for large-eddy simulation (LES) of geophysical turbulence, but their key parameters are often chosen empirically. Here, we…Yifei Guan, Pedram Hassanzadeh·Jun 12, 2026SaveLearn
Numerical simulations of transition and long-term response of a wind turbine airfoilNumerical simulations are performed for an FFA-W3 wind-turbine airfoil corresponding to a section of the DTU 10-MW Reference Wind Turbine. Wall-resolved large-eddy simulations (LES) are carried out…Thales Coelho Leite Fava, Niels Sørensen, Dan Henningson et al.·Jun 11, 2026SaveLearn
On the Geometry of Spreading PuddlesWe develop a geometric model for the spreading of shallow, viscous puddles of arbitrary shape, building on the recent 'capillary current' model for axisymmetric droplets. In short, we assume…David Darrow·Jun 11, 2026SaveLearn
Nested homogenization of xylem-inspired porous fluidic networksFluidic networks may contain hierarchical porous structures in which transport across macroscopic interfaces is controlled by geometrical features at multiple nested length scales. Direct resolution…Pier Giuseppe Ledda, Giacomo Ferrari, Giuseppe Antonio Zampogna·Jun 11, 2026SaveLearn
Resistance tensors for aggregate particles with Stokesian dynamicsThe response of particles to low-Reynolds flow can be compactly predicted with resistance or mobility tensors. However, the difficulty of obtaining accurate values for the elements of these tensors…J. Gissinger, G. Voth, B. Mehlig et al.·Jun 11, 2026SaveLearn
Effects of mean flow skew on turbulent shear layers. Part II. Experimental investigationPlanar turbulent mixing layers, formed by the interactions of two parallel streams with different velocities, have been studied far more than three dimensional (3D) turbulent mixing layers, in which…Dipendra Gupta, Vedant Kumar, Johan Larsson et al.·Jun 11, 2026SaveLearn
Ultimate regime in Rayleigh-Darcy ConvectionDNS of Rayleigh-Darcy convection in a 3D porous domain is performed at Ra ∈ [103, 106] to investigate heat-transfer scaling, thermal boundary-layer dynamics, and flow-structure evolution in the…Garima Varshney, Anikesh Pal, Narsimha Reddy Rapaka·Jun 11, 2026SaveLearn
Data-Driven Equation Discovery for Nonlinear Liquid Film FlowsOver the past decade data-driven equation discovery emerged as a powerful alternative to first principles-based methodologies traditionally used in mathematical modelling cycles. The approach…Sebastian T. Dooley, Albert P. Bartók, James E. Sprittles et al.·Jun 11, 2026SaveLearn
Duty-cycle modulation of the self-sustaining process by spanwise wall oscillationDirect Numerical Simulation of turbulent channel flow at friction Reynolds number around 200 is performed with spanwise wall actuation to achieve drag reduction. A quasi-square-wave waveform,…Lionel Agostini·Jun 11, 2026SaveLearn
From Optical Breakdown to Bubble Inception: A Coupled Plasma-Thermal Framework for Nanosecond Laser-Induced Cavitation in WaterLaser-induced cavitation under nanosecond optical breakdown is central to applications such as laser-induced forward transfer (LIFT), microsurgery, and microfluidic actuation, yet the physical origin…Shuqi Zhou, Abdol Hadi Mokarizadeh, Ben Xu·Jun 11, 2026SaveLearn
Evolution of passive scalar mixing layers in stratified and unstratified homogeneous turbulenceHigh-resolution large-eddy simulations of decaying stratified and unstratified homogeneous turbulence are used to understand the mixing of passive scalars in stably stratified flows. Two passive…Stephen M. de Bruyn Kops, Peter N. Blossey, James J. Riley·Jun 11, 2026SaveLearn
Schrödinger-Navier-Stokes equation for capillary fluidsWe highlight some properties of the Schrödinger-Navier-Stokes (SNS) equation [Salasnich, Succi, and Tiribocchi (2024)] of potential relevance for microfluidics and soft matter. Specifically, we show…Luca Salasnich, Simon Böhly, Sauro Succi et al.·Jun 11, 2026SaveLearn
Two pathways to diapycnal mixing in strongly stratified flows with no initial vertical shearWhile vertically-sheared stratified flows have been studied extensively, their horizontally-sheared counterparts have received considerably less attention. Yet, horizontal shear instabilities remain…Pascale Garaud, Dante Buhl, Jason Johnstone et al.·Jun 10, 2026SaveLearn
Dynamical large deviations and long-range correlations for local weak wave turbulenceWave turbulence describes the statistical dynamics of dispersive waves with weakly nonlinear interactions. While the classical kinetic equation captures the mean evolution of the wave spectrum, the…Brice Douet, Freddy Bouchet·Jun 10, 2026SaveLearn
Hydrodynamic Resistance on Oscillating Planar Interfacial BodiesWe study the unsteady dynamics of floating planar bodies undergoing lateral oscillations along an air-water interface. Scaling arguments indicate that at high Womersley number and small oscillation…Ian Ho, Ajay Harishankar Kumar, Daniel M. Harris·Jun 10, 2026SaveLearn
Laser-Liquid Interaction in Laser-Induced Forward Transfer (LIFT) Printing: A Multiscale Perspective on Bubble Dynamics and Material EjectionLaser-induced forward transfer (LIFT) is a nozzle-free laser-assisted printing method that provides an advanced manufacturing route for spatially selective deposition of functional inks, nanoparticle…Shuqi Zhou, Abdol Hadi Mokarizadeh, Ben Xu·Jun 10, 2026SaveLearn
Effect of Additively Manufactured Wall Lattice Structures on Flashback Limits in a Hydrogen Jet Flame CombustorThis study investigated how additively manufactured nozzles with body-centered cubic lattice structures reduce the flame flashback propensity in a hydrogen jet flame burner. Five different…Alexander Jaeschke, Thomas Ludwig Kaiser, Lukas Melzig et al.·Jun 10, 2026SaveLearn
Adaptive, efficient, and scalable water wave modeling with dispersive hyperbolic systemsAccurate modeling of tsunamis (such as those generated by landslides) requires capturing both wave dispersion in the deep ocean and wave breaking near the shore. The shallow water equations are often…Carlos Muñoz-Moncayo, David I. Ketcheson·Jun 10, 2026SaveLearn
Thin-film drainage becomes singular at saddlesThin films draining on top of curved surfaces occur in coating, manufacturing, and geophysical flows, where predicting accumulation and thinning is crucial. Unlike singularities associated with…Simeon Djambov, Alice Marcotte, François Gallaire et al.·Jun 10, 2026SaveLearn
Modelling Wave Attenuation by Mangroves: Effects of Root Morphology and Sea-Level RiseMangroves are increasingly promoted as nature-based solutions for coastal protection, yet many existing models neglect the vertical variation of vegetation biomass, leading to oversimplified…Khang Ee Pang, Zhi Yung Tay·Jun 10, 2026SaveLearn
Data-driven surrogate models for forecasting experimentally measured fluid flowsData-driven modeling shows significant promise for faster-than-real-time forecasting of fluid flows. For real-world engineering applications (e.g., flow control), models must contend with limited,…Peter I. Renn, Emily H. Palmer, Cong Wang et al.·Jun 10, 2026SaveLearn
A fast and consistent sharp-interface immersed boundary method for moving bodies of arbitrary thicknessImmersed boundary methods (IBMs) are widely used to simulate flows around complex geometries and moving bodies, but they often involve a trade-off between precision and computational efficiency.…Giovanni Vagnoli, Martino Andrea Scarpolini, Roberto Verzicco et al.·Jun 10, 2026SaveLearn