Air-water cavity in multi-plunging jet impactsWe report the formation of an original dome-shaped air-water cavity at the impact site of closely-packed plunging water jets. The injector assembly consists of concentric rings of circular jets,…Narendra Dev, Hèléne Scolan, J. John Soundar Jerome et al.·Aug 13, 2026SaveLearn
Lattice Boltzmann Method for Compressible Navier-Stokes-Fourier EquationsA lattice Boltzmann scheme for the three-dimensional compressible Navier--Stokes--Fourier equations, derived automatically from the declared system by a symbolic compiler, is validated against exact…Fedor Bukreev, Adrian Kummerländer, Mathias J. Krause·Aug 13, 2026SaveLearn
Modern aerodynamics models do not capture important unsteady forces--the failure of the quasi-steady approximationAerodynamic unsteadiness is inherent to the operation of many engineering applications, especially those that involve large-scale rotating blades, such as modern wind turbines. Over the past few…Victoria M. Malarczyk, Marcus Hultmark·Aug 13, 2026SaveLearn
Intermittent Vortex Merging and Extreme Drag in Transitional Airfoil FlowIntermittent departures from nominal Kelvin--Helmholtz shedding can produce rare and pronounced drag excursions in transitional airfoil flow. We examine these events using two-dimensional direct…Shishir Gautam, Chitrarth Prasad·Aug 13, 2026SaveLearn
Second-order stochastic modeling of particle resuspension: macroscopic degeneracy and anomalous pre-detachment transportParticle resuspension models are commonly evaluated using the macroscopic resuspended fraction, although this integrated observable may conceal the temporal dynamics leading to detachment. Here, a…David Ben-Shlomo, Ronen Berkovich, Eyal Fattal·Aug 13, 2026SaveLearn
Controlling the dynamics of an electric-field-driven droplet on a lubricant-infused micropillar surfaceAs a non-contact control approach, electric field (EF) can be utilised to drive droplet dynamics on a lubricant-infused surface (LIS), with numerous potential applications ranging from drug…Geng Wang, Junyu Yang, Timan Lei et al.·Aug 13, 2026SaveLearn
Bayesian optimization and topographic exploration of drag-reducing dimples for aerodynamic surfacesDimples offer a promising route to reducing drag on aerodynamic surfaces. However, whether such shallow concavities yield a net benefit depends sensitively on their topography, which demands…Sangjoon Lee, M. Erden Yildizdag, Haris M. Sheikh·Aug 13, 2026SaveLearn
Infrared imaging of thermally-driven jets and eddies in planetary-style laboratory turbulenceThis paper is associated with a poster winner of a 2025 American Physical Society's Division of Fluid Dynamics (DFD) Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion.…Cy S. David, Remy Monville, Daphne Lemasquerier et al.·Aug 13, 2026SaveLearn
Dispersion and clustering of deformable droplets in turbulenceMotivated by the application of spray combustion in aviation industry, this work investigates the dispersion of non-spherical droplets in turbulence. The most common strategy for modeling sprays…Yushu Lin, John Palmore·Aug 12, 2026SaveLearn
Wave-Assisted Propulsion in Bimodal Sea States: Hydrodynamic Performance and Hydroelastic TuningWave-assisted propulsion (WAP) systems harvest ocean wave energy to generate propulsive thrust, offering a promising approach for improving endurance and energy efficiency of marine vehicles.…Avinash Kumar Pandey, Jung-Hee Seo, Rajat Mittal·Aug 12, 2026SaveLearn
Effects of Soret Diffusion and Radiative Heat Loss on the Evolution of Buoyant Flame Kernels in Ultra-Lean Hydrogen-Air MixtureUltra-lean hydrogen flames under terrestrial gravity are governed by a coupled interaction among preferential diffusion, thermal diffusion, heat loss, and self-induced convection. This study…Ivan S. Yakovenko, Alexey D. Kiverin·Aug 12, 2026SaveLearn
Strain-coupled one-dimensional turbulence for rapid distortionThe distortion of turbulence by mean strain - through component amplification, pressure-mediated redistribution and spectral rescaling - is central to flows ranging from wind-tunnel contractions to…Sparsh Sharma·Aug 12, 2026SaveLearn
A transport geometry of acoustic analogies:exact holonomy of source re-attribution and its observable consequencesThe source term of an acoustic analogy is not unique: different rearrangements of the Navier-Stokes equations attribute the same radiated sound to different apparent sources. Although this…Sparsh Sharma·Aug 12, 2026SaveLearn
Thermochemical non-equilibrium effects on turbulent boundary layersThis investigation employs direct numerical simulations (DNS) of high-Mach-number turbulent boundary layers under three flow conditions: a low-enthalpy calorically perfect gas, and two…Jun-Yang Li, Ming Yu, Dong Sun et al.·Aug 12, 2026SaveLearn
Influence of Flow on Discharge Behaviors and CO2 Conversion in Gliding Arc DischargesPlasma reactors present themselves as a unique means of electrified chemical production, particularly in the conversion of greenhouse gases (e.g., CO2) back into chemical feedstocks. Warm plasmas,…Alexander Davis, Charles Burton, Stephanie Pecaut et al.·Aug 11, 2026SaveLearn
Anisotropic Thermalization in Far-from-Equilibrium FlowsWe present a deterministic discontinuous Galerkin (DG) finite-element solution of the Boltzmann equation, without moment-closure approximations, under a class of far-from-equilibrium deformations.…Arnab Debnath, Timothy Breitzman, Kaushik Dayal·Aug 11, 2026SaveLearn
Inelastic spreading of viscoelastic dropsWhen a liquid drop impacts a solid surface, rebound and splashing are known to be suppressed by additives that induce elastic effects; however, the influence of elasticity on the maximum spreading…Mete Abbot, Thijs Varkevisser, Manglesh Singh et al.·Aug 11, 2026SaveLearn
Deep reinforcement learning for separation control in turbulent wind-tunnel flowThis work investigates Deep Reinforcement Learning (DRL) as a tool for model-free closed-loop active separation control in a fully turbulent wind tunnel flow over a one-sided diffuser. The agent…Sofia Avdiiv, Andre Weiner, Ben Steinfurth·Aug 11, 2026SaveLearn
Low-dimensional structure and online tracking of POD subspaces on the Grassmann manifold: application to flow around an airfoilRepresenting flow states over a wide range of flow parameters and control inputs in a low-dimensional state space is a central challenge in fluid mechanics. Rather than representing the instantaneous…Shintaro Sato, Yoshitsugu Naka, Rei Sasaki et al.·Aug 11, 2026SaveLearn
Weakly nonlinear internal waves by tidal flow over a ridge in a shear currentWe extend Thorpe successive approximation expansion to the forced, tide locked internal wave generation problem of Lamb and Dunphy, where a barotropic tide over a ridge radiates a discrete spectrum…Xun Huang·Aug 10, 2026SaveLearn
Wind-Informed Rapid Flight-Planning in Complex Urban Topologies via Machine Learning and Experimental ValidationAdvanced air mobility operations hold the potential to enhance and expand regional transportation of both people and goods in populated areas. However, hazardous flight conditions arising from…Peter I. Renn, Alejandro A. Stefan-Zavala, Julian Humml et al.·Aug 10, 2026SaveLearn
SA-AI (Spalart-Allmaras with Autogenous Inception) Technical SummaryNatural transition from laminar to turbulent flow can be modeled by using only the Spalart-Allmaras (SA) working variable. The variable serves as its own transition indicator, in a one-equation…Qiqi Wang·Aug 10, 2026SaveLearn
Memory-Generated Transport Geometry: Curvature, Holonomy, and IrreversibilityMemory is traditionally incorporated into transport theory as a constitutive correction acting on an already prescribed kinematic structure. Here we develop a different framework in which finite…Mounir Kassmi·Aug 10, 2026SaveLearn
Exact solution for the motion of a rigid particle with S4 and C2v symmetry settling under gravity in a viscous fluidWe provide an exact and complete solution for the dynamics of a rigid particle of uniform density with C2v and S4 symmetry, settling under gravity in a viscous fluid at a Reynolds number much…Piotr Zdybel, Maria L. Ekiel-Jeżewska·Aug 10, 2026SaveLearn
Turbulence anisotropy in a bubbly vertical channel flow with topological changeHigh-fidelity numerical simulations of bubble-laden, vertical channel flow in the upward configuration, where the bubbles undergo topological changes (breakup and coalescence), were performed with…Arturo A. Arosemena, Davide Procacci, Simone Di Giorgio et al.·Aug 9, 2026SaveLearn