A variable-coefficient model for decay of isotropic turbulence capturing effects of finite cascade time and Reynolds numberWe study isotropic turbulence decay in the context of the k-epsilon model, which solves the dissipation and kinetic energy equations. In modeling the dissipation equation, the coefficient Cepsilon2,…Rozie Zangeneh, Wenyuan Xue, Daniel Israel et al.·Jun 2, 2026SaveLearn
Passive transverse forcing of turbulent boundary-layer flow using sinusoidal surface groovesA surface geometry consisting of parallel, meandering streamwise grooves has been experimentally studied as an alternative means of passive transverse forcing of turbulent boundary-layer flow.…Max W. Knoop, Bas W. van Oudheusden, Luuk Pelkmans et al.·Jun 2, 2026SaveLearn
A reduced model for surface wave-current interactions without spatial scale separationWe propose a reduced asymptotic model for the mutual interaction between a weakly nonlinear surface gravity wave field and a slowly evolving incompressible current in a homogeneous rotating fluid.…Yohei Onuki, Yasushi Fujiwara·Jun 2, 2026SaveLearn
Turbulence: An Entropic ApproachWe show that maximizing the generalized entropic functional Sq,δ subject to standard kinetic energy constraints provides generalized canonical distributions that agree perfectly with measured…Christian Beck, Constantino Tsallis·Jun 2, 2026SaveLearn
Dynamics of vapor bubble train in flow boiling heat transfer in microchannelsMicrochannel flow boiling is a promising technique for micro-device thermal management, and understanding the bubble dynamics in microchannel flow boiling is important for the applications. Previous…Odumuyiwa A. Odumosu, Tianyou Wang, Zhizhao Che·Jun 2, 2026SaveLearn
Hydrodynamically engineered Indigenous arrows skip on water for waterfowl huntingAcross the Northern Hemisphere, Indigenous hunters developed arrows capable of skipping across the water surface to strike waterfowl. Archaeological and ethnographic records reveal remarkably similar…Junrong Zhang, Farrukh Kamoliddinov, Thomas Yang et al.·Jun 2, 2026SaveLearn
Resonance behavior of a bubble near a spherical inclusionWe present an analytical model for the frequency response of a gas microbubble oscillating near a spherical inclusion of arbitrary size and mechanical nature (rigid, fluid, or viscoelastic) immersed…Thomas Micol, Alexander A. Doinikov, Cyril Mauger et al.·Jun 2, 2026SaveLearn
Bubble curtains in a lock-exchange flow: the importance of transient dynamics in the curtain-driven regimeBubble curtains are line bubble plumes that are used to mitigate saltwater intrusion in ship locks. When the lock gate that separates saline seawater from fresh river water is opened, a lock-exchange…Shravan K. R. Raaghav, Ronald J. A. Driessen, Tom S. D. O'Mahoney et al.·Jun 2, 2026SaveLearn
Optimal velocity fields for instantaneous magnetic field growthWe consider a variant of the kinematic dynamo problem. Rather than prescribing a velocity field and searching for high-growth magnetic fields via an eigenvalue problem, we treat the seed…Nicholas J. Moore, Stefan G. Llewellyn Smith·Jun 2, 2026SaveLearn
Lagrangian-Eulerian learning of flow field and trajectories with TrajectoryFlowNetPredicting particle transport in complex flows is traditionally achieved by solving the Navier-Stokes equations. While various numerical and experimental methods exist, they typically require deep…Jingdi Wan, Hongping Wang, Bo Liu et al.·Jun 2, 2026SaveLearn
Numerical search for states with constant enstrophy flux over finite time intervals in two-dimensional turbulenceAn ensemble model of turbulence based on states with constant flux in wavenumber space was proposed in [K. Yoshida, Phys. Rev. E, 106, 045106 (2022)]. The justification of this ensemble model relies…Kyo Yoshida·Jun 2, 2026SaveLearn
Scale-invariance and characteristic length scale for the large-scale vortices in geostrophic convective turbulence with frictionIn geostrophic convective turbulence, large-scale vortices (LSVs) emerge through upscale energy transfer and are commonly regulated by large-scale friction. Yet the role of friction in setting the…Guang-Yu Ding, Tian-Yi Pei, Hang-Yu Zhu et al.·Jun 1, 2026SaveLearn
Energy Transfer Mechanisms in Wake-Modulated Transonic FlutterTransonic flutter is a detrimental aeroelastic instability that can generate large-amplitude structural oscillations, leading to severe vibration, fatigue damage, reduced operational limits, and…Vedasri Godavarthi, Jacob Turner, Jung-Hee Seo et al.·Jun 1, 2026SaveLearn
Symmetry Breaking and Restoration in Turbulent Thermal Convection Arises from the Competition Between Advection and BuoyancySpontaneous symmetry breaking (SSB) remains poorly understood in thermal convection, but hints may be found from its restoration. We hereby compare the two convection systems: experiments with…Guang-Yu Ding, Fang Xu, Ke-Qing Xia·Jun 1, 2026SaveLearn
Sharp-interface Simulations of Energetic Multiphase Flows with Large Density and Viscosity RatiosFlows with high density ratios, such as wave breaking and air entrainment in maritime applications, remain challenging to simulate due to their energetic and strongly nonlinear nature. In such…Tzu-Yao Huang, Nicolas Valle, Artur K. Lidtke et al.·Jun 1, 2026SaveLearn
Identifying sensitivity-dominant parameters via active subspaces in reduced-order modeling of fluid dynamicsReduced-order models (ROMs) are widely employed to describe complex system dynamics when simulations with full-order models (FOMs) are computationally prohibitive. This study presents POD-AS-PRS, a…Dewu Yang, Rui Wang, Pengyu Lai et al.·Jun 1, 2026SaveLearn
A model for pulsation in high-speed double cone flowPeriodic large-scale shock-wave unsteadiness over a canonical double cone, termed in literature as "pulsation," is experimentally studied at Mach 6. The general double cone geometry is…Subhajit Das, Subrahmanyam Duvvuri·Jun 1, 2026SaveLearn
Breaking-induced energy dissipation of surface gravity waves at varying scales and co-flowing wind stressesBreaking-induced energy dissipation is studied for individual unsteady breaking waves using laboratory measurements of unidirectional surface gravity wave groups across a range of wave scales and…Rui Cao, Enrique M. Padilla, Xu Chen et al.·Jun 1, 2026SaveLearn
Interaction between vapor bubbles during flow boiling heat transfer in microchannelsMicrochannel flow boiling is an efficient cooling solution for high-power-density miniaturized systems. Many studies on microchannel flow boiling focused on the dynamics of single vapor bubbles,…Odumuyiwa A. Odumosu, Mengqi Ye, Tianyou Wang et al.·Jun 1, 2026SaveLearn
Prandtl number dependence of rotating internally heated convectionWe investigate the influence of the Prandtl number (Pr) on penetrative internally heated convection (IHC) in both non-rotating and rotating regimes using three-dimensional direct numerical…Rodolfo Ostilla-Mónico, Ali Arslan·Jun 1, 2026SaveLearn
Geometric Solution of Turbulence as Diffusion in Loop SpaceStrongly nonlinear dynamics, from fluid turbulence to quantum chromodynamics, have long constituted some of the most challenging problems in theoretical physics. This review describes a unified…Alexander Migdal·Jun 1, 2026SaveLearn
On the impact of the turbulent grazing flow development on the acoustic response of an acoustic linerThe interaction between acoustic waves and turbulent grazing flow over an acoustic liner is investigated using Lattice-Boltzmann Very-Large-Eddy simulations. A single-degree-of-freedom liner with 11…Angelo Paduano, Francesco Scarano, Julio Cordioli et al.·Jun 1, 2026SaveLearn
Iterative bounds on effective transport for advection diffusion in periodic flow fieldsOver three decades ago a Stieltjes integral representation for the effective diffusivity of a tracer in a steady fluid velocity field was developed, involving the spectral measure of a compact…N. B. Murphy, D. Hallman, E. Cherkaev et al.·Jun 1, 2026SaveLearn
Anti-Fourier heat flux does not certify the fourth-order closure state of a rarefied cavityCold-to-hot heat transfer in rarefied cavities is usually treated as a signature of Fourier-law failure. Here it is used to ask whether a correct anti-Fourier heat-flux field certifies the flux-side…Ehsan Roohi·May 31, 2026SaveLearn
Emergent Transfer of a Physics Foundation Model from Simulation to Laboratory TurbulenceWhether physics foundation models can be usefully deployed on laboratory experiments remains an open question for scientific machine learning (ML). We test this question on the Rayleigh-Taylor…Payel Mukhopadhyay, Stefan S. Nixon, Romain Watteaux et al.·May 31, 2026SaveLearn