Autonomous route to the strange attractor: the many life stages of the chaotic bubblewheelA body floating atop a supersaturated fluid may accumulate bubbles along its underbelly, which can render the body rotationally unstable. But rotation can strip the surface of these bubbles when they…Michael Zhao, Saverio E. Spagnolie·Aug 17, 2026SaveLearn
Turbulent Microscale Flow Field Prediction In Porous Media Using Convolutional Neural NetworksTurbulence modeling in porous media can be greatly improved by combining high-resolution numerical methods with modern data-driven techniques. The development of accurate macroscale models (length…Vishal Srikanth, Ching-Wei Huang, Ryan Harradine et al.·Aug 17, 2026SaveLearn
Volume-preserving Lagrangian averaging using polar factorizationThe generalised Lagrangian mean (GLM) theory of Andrews & McIntyre provides a powerful framework to study the interactions between waves and flows. A drawback of this theory is that the Lagrangian…Abhijeet Minz, Lois E. Baker, Jacques Vanneste·Aug 17, 2026SaveLearn
A diffuse-interface method for compressible two-phase flows with seven- and six-equation modelsIn this work, a novel phase-field method is proposed for the six- and seven-equation non-equilibrium models for simulating compressible two-phase flows. Such formulations allow for monotonic mixture…Luis H. Hatashita, Suhas S. Jain·Aug 17, 2026SaveLearn
A source-term interpretation of turbulent rough wall-pressure spectraWall-pressure fluctuations beneath a turbulent boundary layer drive the flow-induced noise and structural loading of rough surfaces. On a smooth wall their variance grows with the logarithm of the…J. M. O. Massey, A. J. Smits, B. J. McKeon·Aug 17, 2026SaveLearn
Intermittent turbulence in inclined gravity currentsInclined gravity currents on shallow slopes can exhibit pronounced turbulence intermittency. Using direct numerical simulations, we investigate this behaviour for a temporal gravity current over a…Lianzheng Cui, Graham O. Hughes, Maarten van Reeuwijk·Aug 17, 2026SaveLearn
Collision efficiency of rapidly settling particle pairs in a turbulent flowWe investigate the collision dynamics of hydrodynamically interacting inertialess spherical particle pairs sedimenting in a homogeneous isotropic turbulent flow. The analysis focuses on the…Pijush Patra, Donald L. Koch, Anubhab Roy·Aug 17, 2026SaveLearn
Pattern Formation in Bioconvection of Thiovulum in a Hele-Shaw ChamberThis paper is associated with a video winner of a 2025 American Physical Society's Division of Fluid Dynamics (DFD) Gallery of Fluid Motion Award for work presented at the DFD Gallery of Fluid…Trey Johnson, George A. Schaible, Yujia Qi et al.·Aug 17, 2026SaveLearn
Measuring Mean Spanwise Flow with a Rotating Single Hot-Wire Probe over a Wide Yawed Riblet-Textured SurfaceThis study investigates the spatial development and recovery of near-wall flow steering induced by yawed widely-spaced riblets. To accurately measure the mean spanwise velocity in the near-wall…Yu Xia, Sandesh Parajuli, Hafiz Aliffrananda et al.·Aug 17, 2026SaveLearn
An improved phase-field framework for simulating impacts of solidifying metal dropsHere, an improved phase-field method for simulating the impact dynamics of solidifying molten metal droplets is developed using targeted free-energy modifications. Conventional…Ali Mostafavi, Vitaliy Yurkiv, Alexander L. Yarin et al.·Aug 16, 2026SaveLearn
Similarity of start-up flow in porous media for large pressure gradientsWe investigate the start-up flows through ordered porous media (hexagonal close-packed, face-centred cubic and body-centred sphere packs) by means of direct numerical simulations. The flows are…Yoshiyuki Sakai, Lukas Unglehrt, Michael Manhart·Aug 16, 2026SaveLearn
Compressibility Driven Wake Transition and Hysteresis over Cargo Aircraft AftbodiesAft sections of military cargo aircraft employ flat surfaces at high upsweep angles to accommodate ramp doors, producing flow features that affect cargo-drop accuracy, paratrooper safety, and…Chitrarth Prasad, Rajesh Ranjan, Daniel J. Garmann et al.·Aug 16, 2026SaveLearn
Rheology-controlled hydraulic selection in fracture-matrix heat transport: mechanisms and thermal signaturesGeological fractures exhibit heterogeneous aperture fields that localize flow along preferential pathways and produce nonuniform fluid-matrix contact times. Heat transport results from channelized…Alessandro Lenci, Irene Daprà·Aug 16, 2026SaveLearn
Finite-Strength Sensitivity and Euler--UTSD Correspondence for Guderley--Mach ReflectionWeak shock reflection at nearly glancing incidence is governed, after the transonic weak-shock scaling, by a self-similar unsteady transonic small-disturbance (UTSD) free-boundary problem. We derive…Justin Kin Jun Hew·Aug 16, 2026SaveLearn
Filtered turbulent flame model with wrinkling correction on chemical source for nonpremixed combustion simulationOne of the most critical challenges in turbulent combustion modeling is the chemical source closure. In the recently developed filtered turbulent flame model (FTFM), a oneto-one correspondence…Haoyu Lu, Junyi He, Lipo Wang·Aug 16, 2026SaveLearn
The Geometry of Stochastic Fluid DynamicsStochastic geometric mechanics (SGM) is known for its potential utility in quantifying uncertainty in global climate modelling of the Earth's ocean and atmosphere while also preserving the…Darryl D. Holm·Aug 15, 2026SaveLearn
Domain-filling rolls in two-dimensional fixed-flux Rayleigh-Bénard convectionRayleigh-Bénard convection of large horizontal extent sometimes self-organizes into domain-filling structures. In two dimensions, domain-filling rolls persist - from some but not all initial…Mathew D. B. Lewis, Zehan Zheng, David Goluskin·Aug 15, 2026SaveLearn
Modeling the compressible flow field of an impulsively started circular cylinder with refined potential flow theoryNew analytical model predicts how fluid flows around a cylinder at high speeds, capturing wake patterns, turbulence, and shock waves with less computation than full simulations.Taofiq Omoniyi Amoloye, Leke Thaddeus Oladimeji, Mahmoud A. Hayajnh et al.·Aug 14, 2026SaveLearn
A physics-informed SUPG-stabilized finite element framework with shock-capturing for simulating inviscid high-speed flows around a cylinderThis study presents a hybrid computational framework for simulating non-reacting inviscid high-speed flows of nitrogen gas (N2) around a circular cylinder. Owing to the strongly…Süleyman Cengizci, Ömür Uğur·Aug 14, 2026SaveLearn
Data-driven modeling of hypersonic flows in chemical non-equilibrium with catalytic surfacesHypersonic flows involve extreme thermochemical non-equilibrium, where strong energy dissipation leads to tightly coupled chemical reactions, radiation, and energy exchange. In this regime, surface…Konstantinos Sarras, Louis Walpot, Thierry Magin et al.·Aug 14, 2026SaveLearn
Long-time behavior of optimal mixing in an advection-diffusion shell modelWe investigate the long-time behavior of optimal mixing in an advection-diffusion equation using a shell model framework. Our focus is on quantifying the decay of the scalar variance, measured by the…Jiajia Guo, Baole Wen, Christian Seis et al.·Aug 14, 2026SaveLearn
Elastic wakes mediate collective viscoelastic fluid-structure interactions in side-by-side cantilever arraysFluid-structure interaction (FSI) in viscoelastic flows past deformable structures at low Reynolds numbers remains poorly understood, despite its relevance to biological systems such as cilia and…Arisa Yokokoji, Amy Q. Shen, Simon J. Haward·Aug 14, 2026SaveLearn
Cross-frequency amplification of perturbations in a laminar separation bubble using resolvent analysisA large-eddy simulation (LES) of a laminar separation bubble (LSB) induced by an adverse pressure gradient over a flat plate is performed at an inflow displacement-thickness-based Reynolds number of…Md Rashidul Islam, Yiyang Sun·Aug 13, 2026SaveLearn
Low-dimensional Galerkin projection models for predicting turbulent secondary mean flow in a square ductThe presence of sidewalls in turbulent duct flows leads to the emergence of secondary flow structures in the form of counter-rotating streamwise vortices near the corners (Prandtl's secondary…Ahmed I. El-Nadi, Ricardo Vinuesa, Scott T. M. Dawson·Aug 13, 2026SaveLearn
DD-RNO: A Domain-Decomposed Routed Neural Operator for Airfoil Flow PredictionDeep learning surrogates for RANS flow prediction around airfoils face two persistent bottlenecks. A single neural architecture cannot simultaneously resolve sharp near-wall boundary layers and…T. A. Mehta, P. S. Bhati, H. D. Akolekar·Aug 13, 2026SaveLearn