Phase-symmetry breaking as a mechanism for subcritical transition in shell models of turbulenceSubcritical transition to turbulence, in which the laminar state is linearly stable yet finite-amplitude perturbations develop into turbulence, is ubiquitous but lacks a simple analytical framework.…Yoshiki Hiruta·Mar 26, 2026SaveLearn
Data-Driven Modal Decomposition Analysis of Unsteady Flow in a Multi-Stage TurbineTwo data-driven modal analysis approaches, proper orthogonal decomposition (POD) and dynamic mode decomposition (DMD), are applied to analyze the unsteady flow obtained by solving the…Yalu Zhu, Feng Liu·Mar 26, 2026SaveLearn
Large-Eddy Simulation of Reacting Flow in a Turbine StageAn in-house large-eddy simulation (LES) code is applied to compute the chemically reacting flow in a turbine stage to analyze the influence of fuel injection and combustion on its aerodynamic and…Yalu Zhu, Feng Liu, William A. Sirignano·Mar 26, 2026SaveLearn
Detonation propagation in weakly confined gasesThis study investigates the propagation of detonations along a layered configuration where a reactive gas is weakly confined by a hotter inert layer. CFD simulations are performed using a…Youssef K. Wahba, XiaoCheng Mi, Charles B. Kiyanda et al.·Mar 25, 2026SaveLearn
Geometric Memory Generates Irreversible Transport in Time-Periodic Irrotational FlowsIrreversible transport is generally attributed to vorticity, nonlinear forcing, or explicit symmetry breaking. We show that it can arise even in strictly time-periodic and locally irrotational flows…Mounir Kassmi·Mar 25, 2026SaveLearn
Evaporative cooling and deposition patterns of evaporating Al2O3 nanofluid dropletsThe present study examines evaporative cooling and the resulting deposition patterns of a sessile Al2O3-based nanofluid droplet on a hydrophobic glass substrate at different temperatures.…S. K. Saroj, P. K. Panigrahi·Mar 25, 2026SaveLearn
aPriori: a Python package to process direct numerical simulationsIn the field of computational fluid dynamics, direct numerical simulations generate highly detailed data for the analysis of turbulent flows by resolving all relevant physical scales. Yet their large…Lorenzo Piu, Heinz Pitsch, Alessandro Parente·Mar 25, 2026SaveLearn
Characterisation of rough-wall drag in compressible turbulent boundary layersIn compressible turbulent boundary layers (TBLs), roughness drag is typically characterised by first applying a velocity transformation to account for compressibility, after which the momentum…Dea Daniella Wangsawijaya, Rio Baidya, Sven Scharnowski et al.·Mar 25, 2026SaveLearn
Jet-edge interaction: linear and non-linear frequency-selection mechanismsWe consider a round turbulent jet grazing a rectangular plate angled at 45. Through sound pressure measurements, the tonal dynamics associated with jet-edge interaction are explored in a…Michael N. Stavropoulos, André V. G. Cavalieri, Lutz Lesshafft et al.·Mar 25, 2026SaveLearn
Early warning signals for primary and secondary bifurcation to oscillatory instabilitiesIn several natural and engineering systems, changes in control parameters can trigger bifurcations that lead to sustained or growing periodic oscillations, indicating the onset of oscillatory…Rohit Radhakrishnan, Prasana Kumar, Induja Pavithran et al.·Mar 25, 2026SaveLearn
High-Reynolds-number turbulent boundary layers under adverse pressure gradients. Part 2. A composite mean velocity profileA robust composite mean velocity profile is developed for turbulent boundary layers (TBLs) subjected to adverse pressure gradients (APGs), extending the composite formulation for generic…Ahmad Zarei, Mitchell Lozier, Rahul Deshpande et al.·Mar 25, 2026SaveLearn
DMR effect on drag reduction of a streamlined body measured by Magnetic Suspension and Balance SystemThis study experimentally investigates the aerodynamic drag reduction capabilities of distributed micro-roughness (DMR) coatings on a streamlined model, utilising the 1-m magnetic suspension and…Aiko Yakeno, Hiroyuki Okuizumi, Kento Inokuma et al.·Mar 25, 2026SaveLearn
Modification of the k-ω0 model for roughnessSurface roughness plays a substantial role in many flows for which Reynolds averaged prediction is needed. The transformation used in the k-omega0 model is extended to rough surfaces by adding an…Paul Durbin, Zifei Yin·Mar 25, 2026SaveLearn
Suppression of Rayleigh-B\'enard convection and restratification by horizontal convectionWe investigate the competition between horizontal convection (HC) and Rayleigh-B\'enard convection (RBC) in a fluid layer subject to a uniform destabilizing buoyancy flux at the bottom and a…Florian Rein, Stefan. G. Llewellyn Smith, William. R. Young·Mar 24, 2026SaveLearn
A simplified model for coupling Darrieus-Landau and diffusive-thermal instabilitiesA simplified phenomenological model is proposed to couple the long-wave Darrieus--Landau (DL) instability and the short-wave diffusive-thermal (DT) instability in premixed flames. By identifying a…Prabakaran Rajamanickam·Mar 24, 2026SaveLearn
Steady cone-jet mode of electrospray for single-cell depositionWe propose using the electrospray cone-jet mode operated near its minimum-flow-rate stability limit for single-cell deposition. Because the jet is much thinner than the cells themselves, individual…D. Fernández-Martínez, C. Ferrera, J. M. Montanero et al.·Mar 24, 2026SaveLearn
A diffuse-interface model for N-phase flows with liquid-solid phase changeIn this work, we first propose a diffuse interface model for simulating N phase flows with solid liquid phase change. In this model, a phase field approach is adopted to capture multiphase fluid…Jiangxu Huang, Chengjie Zhan, Zhenhua Chai et al.·Mar 24, 2026SaveLearn
Rare-event detection in a backward-facing-step flow using live optical-flow velocimetry: observation of an upstream jet burstRare and extreme events in turbulent flows play a critical role in transport, mixing and transition, yet are notoriously difficult to capture experimentally. Here we report, to our knowledge, the…Juan Pimienta, Jean-Luc Aider·Mar 24, 2026SaveLearn
Vibrissa inspired geometries enhance sensitivity of wake-induced vibrationsWe report on experiments designed to characterize the vortex-induced vibration (VIV) and wake-induced vibration (WIV) experienced by bluff bodies immersed in both steady and unsteady flows. Using a…Eva Erickson, Eric E. Handy-Cardenas, Joel W. Newbolt et al.·Mar 23, 2026SaveLearn
Self-organised structures in mixed active-passive suspensions due to hydrodynamic interactionsMicroswimmers in suspension exhibit collective swimming behaviour, forming various self-organised structures including ordered, aggregated, and turbulent-like structures. When mixed with passive…Alexander Chamolly, Takuji Ishikawa·Mar 23, 2026SaveLearn
Nonlocal energy transfer mechanism in three-dimensional quantum turbulenceWe investigate the kinetic energy cascade in zero-temperature quantum turbulence. Using simple theoretical arguments and unprecedented numerical simulations, we unveil an universal mechanism…Elliot Bes, Guillaume Balarac, Juan Ignacio Polanco·Mar 23, 2026SaveLearn
Measurement of traveling pressure waves inside a dropletShock wave-droplet interactions have been receiving increasing attention due to their relevance in aviation fuel combustion and minimally invasive medical treatments, yet quantifying them…Sayaka Ichihara, Samuele Fiorini, Yoshiyuki Tagawa et al.·Mar 23, 2026SaveLearn
NeuralFVM: Neural-physics-based Finite Volume Method for Turbulent Flows Using the k-ω ModelIn this work, we develop a neural-physics solver based on finite volume method (FVM), namely NeuralFVM, for turbulent flows by implementing the standard k-ω model designed for efficient…Tingkai Xue, Yu Jiao, Te Ba et al.·Mar 23, 2026SaveLearn
A Lego Block Approach to Flow in Complex Microfluidic NetworksWe present a new way to construct analytical solutions for flow in complex microfluidic channel networks, as well as planar disordered media. Using a combination of Schwarz-Christoffel maps and…Etienne Boulais, Richard D. Braatz·Mar 23, 2026SaveLearn
Combined thermographic measurement and heat-flux compensation methods for aerodynamic heating evaluation in hypersonic flightNovel thermographic measurement and heat-flux compensation methods combined for evaluating aerodynamic heating in hypersonic flight were developed using high-speed thermography. A hypersonic…Kento Inokuma, Aiko Yakeno, Yoshiyuki Watanabe et al.·Mar 23, 2026SaveLearn