Fisher Information Dynamics: A Kinematic Framework for Phase Space Ordering with Applications to Shock Layers and TurbulenceOrder here denotes the sharpness of probability-density gradients as quantified by Fisher information, distinct from thermodynamic order parameters. A kinematic framework for phase space ordering is…Yingchuan Wu·Sep 4, 2026SaveLearn
Unveiling wing turbulence dynamics through explainable deep learningThe three-dimensional organization of coherent structures in the turbulent flow over aircraft wings remains elusive, limiting our ability to reduce fuel consumption. Here, we use explainable…Samuel Molina-Casino, Andrés Cremades, Sergio Hoyas et al.·Sep 4, 2026SaveLearn
Homoclinic-shedding in the steady forced water-wave problemRecently, an infinite set of steady solitary-wave solution branches was discovered for inviscid and irrotational flow over a localised topographic depression. These solutions were restricted to…Jack Keeler, Mark Blyth·Sep 4, 2026SaveLearn
Elastic turbulence in straight confined geometriesElastic turbulence (ET) in straight geometries has been extensively studied in idealised configurations such as periodic shear and planar channel flow, yet experiments are typically restricted to…Giulio Foggi Rota, Daulet Izbassarov, Aditya Tekriwal et al.·Sep 4, 2026SaveLearn
Transport fidelity and domain of validity of compact Gaussian kinetic representations for rarefied flowsCompact representations of rarefied flows must retain nonequilibrium transport information while identifying their range of validity. We investigate a common localized-Gaussian strategy for…Ehsan Roohi·Sep 4, 2026SaveLearn
Lagrangian dynamics unveil polymer conformation in viscoelastic flowsThe complex flow behavior of viscoelastic fluids emerges from a feedback between fluid stress and the out-of-equilibrium conformational dynamics of their constituent polymer chains. While…Louison Thorens, Gabriel Juarez, Jeffrey S. Guasto et al.·Sep 3, 2026SaveLearn
Quasi-Two-Dimensional Simulation of a Rotating Detonation Engine Combustor and InjectorA numerical simulation of an annular rotating detonation engine with stoichiometric hydrogen-oxygen is performed. A generic, well posed, and easily implemented approach using a quasi-two-dimensional…S. She-Ming Lau-Chapdelaine, Matei I. Radulescu, Zekai Hong·Sep 3, 2026SaveLearn
Coherent-structure dynamics in wall turbulence from state-space trajectoriesWe identify dynamical processes in the near-wall region of turbulent wall-bounded flow by representing coherent-structure energy as trajectories in a low-dimensional state space and analyzing…Emma Lenz, Ahmed Elnahhas, H. Jane Bae·Sep 3, 2026SaveLearn
Two-phase Temperature Reconstruction in Ice-Water SystemsWhat controls heat transport when liquid water interacts with ice? Answering this question is essential for understanding water bodies undergoing phase change. Yet experimental progress remains…Zhukun Wang, Daisuke Noto, Douglas J. Jerolmack et al.·Sep 3, 2026SaveLearn
Characterizing periodic orbits in two-dimensional Rayleigh-Bénard flowsUnstable periodic orbits and steady states are believed to form the backbone of spatiotemporal chaos and turbulence, yet their computation in thermally driven flows remains scarce for transitional…Joaquín Cullen, Melisa Y. Vinograd, Patricio Clark di Leoni·Sep 3, 2026SaveLearn
Dissipation scaling in wind turbine wakes exposed to free-stream turbulenceThe nature of the dissipation of turbulent kinetic energy (TKE) is investigated experimentally in the wake of a diameter D=0.58m wind turbine exposed to several ``flavours'' of…Martin Bourhis, Oliver R. H. Buxton·Sep 3, 2026SaveLearn
Analytic study of the continuous spectrum of three-dimensional weak shock layersThree-dimensional linear stability of a weak, compressible shock layer is analyzed using exact Reynolds-number-independent forms of the governing base flow and linear stability equations, obtained by…Vassilis Theofilis·Sep 3, 2026SaveLearn
How do flapping avian wings exhibit superior aerodynamic performance?This work investigates the unsteady aerodynamic performance and vortex dynamics of avian-inspired flapping wings using our in-house sharp-interface immersed-boundary solver, VorteXdyn. A…Dilip Thakur, Muhammad Saif Ullah Khalid·Sep 3, 2026SaveLearn
Mach-number-dependent dissipative anomaly in isothermal compressible turbulenceUsing a comprehensive set of three-dimensional, high-resolution direct numerical simulations, we investigate the existence of a dissipative anomaly in isothermal, homogeneous, isotropic compressible…Shadab Alam, Georgy Zinchenko, Christoph Federrath et al.·Sep 3, 2026SaveLearn
A conservative coupling method of sharp-interface and multi-species model for compressible reacting gas-liquid flows with phase changeIn this paper, a conservative sharp-interface and diffuse-interface coupling method is developed for compressible two-phase multi-species flows with phase change and chemical reactions. The…Jiaxi Song, Yunzhang Tian, Shucheng Pan·Sep 3, 2026SaveLearn
Interface-resolved simulations of boiling heat transferBoiling heat transfer underpins many applications where large heat fluxes must be dissipated. Boiling is characterized by a wide range of coupled multiscale transport phenomena, making its accurate…Alessio Roccon, Luca Brandt·Sep 3, 2026SaveLearn
Cascade coalescence dynamically sustains bubble retention near gas-evolving surfacesBubble detachment from solid surfaces governs heat, mass, and charge transport across technologies vital to clean energy, including high-current-density water electrolysis and boiling thermal…Tao Wu, Bo Liu, Haohao Hao et al.·Sep 3, 2026SaveLearn
Finite-source filtering and Doppler modulation of infragravity waves generated by breakpoint forcingInfragravity waves generated in the surf zone contribute substantially to nearshore water-level variability, with group-scale variations in wave breaking generating free long waves through breakpoint…Hedi Midouni, Stephanie Contardo, Jaak Monbaliu et al.·Sep 3, 2026SaveLearn
A Gauge Theory of Turbulence:We formalize the gauge structure of the Navier--Stokes equation for incompressible fluids, interpreting ∇·v=0 as a gauge fixing analogous to the Coulomb gauge in electromagnetism.…V. E. R. Lemes·Sep 2, 2026SaveLearn
Mapping-based exact-integral formulation of skin-friction transformations for zero-pressure-gradient compressible turbulent boundary layersA long-standing route to efficient surface-drag prediction in zero-pressure-gradient compressible turbulent boundary layers is to map the skin-friction coefficient Cf and momentum-thickness…Xuke Zhu, Xiaoshuo Yang, Yongchao Ji et al.·Sep 2, 2026SaveLearn
Vortex promoters in MHD duct flowWe use 3D direct numerical simulations to study the effects of vortex promoters in liquid metal duct flow to sustain Q2D states which are formed in the presence of strong magnetic fields, such as…Andreu Queralt, Dmitry Krasnov, Yuri Kolesnikov et al.·Sep 2, 2026SaveLearn
Numerical Investigation of Mach 10 Kerosene-Fueled Oblique Detonation Waves at Different Flight AltitudesThe initiation and propagation mechanisms of kerosene-fueled oblique detonation waves are key issues in the development of oblique detonation wave engines. In this study, numerical simulations of…Yunfeng Liu·Sep 2, 2026SaveLearn
Improved uncertainty representation for reducing artificial energy production in structured input-output stability analysisThis work employs a new form of fixed structured uncertainty within the structured small-gain theorem approach proposed by Frank-Shapir & Gluzman (J. Fluid Mech., vol. 1030, 2026, pp A8) for the…Ofek Frank-Shapir, Igal Gluzman·Sep 2, 2026SaveLearn
Mechanism-Resolved Interface Momentum Transfer in Immersed-Boundary Lattice Boltzmann SimulationsImmersed-boundary lattice Boltzmann (IB-LBM) simulations of cylinder and particle flows are usually compared by ranking boundary-enforcement schemes, kernels, and collision models. Such comparisons…Hongju Jo·Sep 2, 2026SaveLearn
Ventilated Cavitation around a sphere through surface air injection at Re = 10,000We perform DNS of ventilated cavitation over a sphere at subcritical (Re=10,000). The flow is modeled as a homogeneous mixture of water and air, with the interface tracked using the volume-of-fluid…Soundararajan R, Anikesh Pal·Sep 2, 2026SaveLearn