Influence of wall thermal boundary condition on mean-flow characteristics of a Mach 2.5 fully rough turbulent boundary layerWe investigate turbulent boundary layers at Mach 2.5 over sinusoidal roughness at matched Reτ=784. We considered three wall temperatures, Tw/Tr= 1.0, 0.7, and 0.4. Each wall temperature was…Mateus A. R. Braga, Robyn L. Macdonald·Sep 8, 2026SaveLearn
Fish navigate a hydrodynamic maze via yaw-mediated lateral migrationIn aquatic environments, gradients in flow velocity and turbulence define a constantly shifting landscape that sets the physical constraints on propulsion and energy expenditure in fish. Successfully…Michael A. Calicchia, Rui Ni·Sep 8, 2026SaveLearn
ONE CYLinder: A Benchmark for Graph-Based Surrogate Modeling of Unsteady Bluff-Body FlowsGraph-based surrogate models offer a promising route to accelerate computational fluid dynamics (CFD) simulations on unstructured meshes. However, their development is limited by the scarcity of…Théodore Michel, Antoine Campos, Alban Dujardin et al.·Sep 8, 2026SaveLearn
Closed-Form Solution for Oscillatory Flow and Wall Shear Stress in Axisymmetric Corrugated TubesPulsatile flow in corrugated tubes arises in hemodynamics and microfluidics, where oscillatory forcing and geometric constrictions jointly determine transport and wall loading. We extend…Frederik Keil, Paolo Malgaretti, Othmane Aouane et al.·Sep 8, 2026SaveLearn
Coupled thermoacoustic resolvent analysis of a model two-stream coaxial combustorWe derived a resolvent operator to analyze the coupled flame-acoustic effect in a model two-stream coaxial combustor. The theoretical analysis accommodates both the hydrodynamic effect of the active…Lu Chen, Zheng Qiao, Yu Lv·Sep 8, 2026SaveLearn
Physics-informed neural networks for viscoelastic fluid flows around a cylinder in a two-dimensional channelGrid-based fluid dynamics solvers routinely struggle with exhaustive meshing demands and ill-posed inverse problems. A practical mesh-free alternative is given by Physics-informed neural networks…Midhuna Suresh, Akanksha Gupta·Sep 7, 2026SaveLearn
Propeller-wing interactions of a lift + cruise eVTOL configuration during transitionThe wakes of a lift + cruise aircraft's vertical lift propellers interact with the wing during the transition from hover to forward flight. This study investigates how variations in axial and…Oliver Westcott, Robert Entwistle, Swathi Krishna·Sep 7, 2026SaveLearn
Marangoni flow induced by crystallization in saline dropletsIn this article, we study the flow induced by crystallization of sodium chloride in sessile droplets. We measure flow velocities on the order of 1 $cm.s-1 during crystallization, two…Théophile Gaichies, Javier Martínez-Puig, Javier Rodríguez Rodríguez·Sep 7, 2026SaveLearn
A Comparative Study of Finite-Volume-based Coupled and Segregated Reduced-Order Models for Incompressible Flows in Parametrized DomainsThis work presents a comparative analysis of Reduced-Order Models (ROMs) applied to incompressible fluid dynamics within geometrically parametrized domains. Two distinct reduced-order solution…Andrea Buffolini, Davide Oberto, Gianluigi Rozza·Sep 7, 2026SaveLearn
Weakly nonlinear dynamics of a follower-force active filament in simple shear flowWe employ weakly nonlinear theory to investigate how an externally imposed simple shear flow affects the onset of spontaneous dynamics of an inertialess active filament deforming in Stokes flow. The…Ory Schnitzer·Sep 7, 2026SaveLearn
Micro-convection mass transfer following bubble coalescence on a solid wallThe Volume-of-Fluid implementation in the basilisk.frBasilisk flow solver is employed to study mass transfer after coalescence-induced jump-off of bubbles on solid substrates at four…Zahra Saadat, Michele Cattani, Amin Soltani et al.·Sep 7, 2026SaveLearn
A Universal Vortex-Formation Law for Insect HoveringFlapping insect wings generate leading-edge vortices (LEVs) that produce much of the lift required for hovering, yet the frequency governing their formation has not been connected to classical vortex…David Greenblatt·Sep 7, 2026SaveLearn
A Hybrid POD-Autoencoder Framework for Reduced Order Modeling of Turbulent Flow via Strategic Field DecompositionThis study proposes a hybrid reduced-order modeling (ROM) framework for the simulation of turbulent flow. The central idea is to decompose flow dynamics according to their temporal characteristics…Xianglong Li, Zeng Liu, Zhan Wang et al.·Sep 7, 2026SaveLearn
A Zero-Flux Material Cylinder in the Unsteady Kiknadze--Krasnov VortexIn viscous flow, the circulation enclosed by a deterministic material loop generally changes through vorticity diffusion. It is shown that the source-bearing unsteady Kiknadze--Krasnov vortex…Khalid M. Saqr·Sep 6, 2026SaveLearn
Unification of The Navier-Stokes Equation for Fluid Mechanics and AeroacousticsThe Navier-Stokes equation for a compressible Newtonian fluid is reassessed, in view of recent investigation results on the foundations of aeroacoustics. In the process, the role and necessity of the…Tapan K. Sengupta·Sep 6, 2026SaveLearn
Transverse transport of microswimmers in oscillatory channel flowsMotile microorganisms inhabit oscillatory flows encountered in physiological and engineering systems, yet the influence of flow unsteadiness on their shear-induced preferential concentration remains…Raghav Ram, Ashwin Ramachandran·Sep 6, 2026SaveLearn
Turbulence Decay Intensifies Clustering of Bubbles and ParticlesOur understanding of inertial particle dynamics in turbulence is mostly based on flows held in a statistically stationary state, a particular regime that differs from many natural flows where energy…Dante L. Naylor, Zhiyu Yang, Lei Yi et al.·Sep 6, 2026SaveLearn
Maintenance of a columnar vortex by inertial waves in rotational turbulenceWe develop a theory that determines the radial profile of the mean velocity in a coherent geostrophic vortex forming in a turbulent rapidly rotating fluid. Following the conditions of our…Nikolay A. Ivchenko, Sergey S. Vergeles, Daniil D. Tumachev et al.·Sep 5, 2026SaveLearn
Hydrodynamic mechanism and suppression of cavity breathing oscillations in a twin-cavity supersonic combustorLow-frequency cavity breathing oscillations can strongly affect flame stabilization and operability in cavity-stabilized supersonic combustors, yet their hydrodynamic origin and suppression remain…Sumit Lonkar, Singeetham Pranaykumar, Pratikash P. Panda·Sep 5, 2026SaveLearn
Sloshing reduction in a swaying tank with porous baffles using scaled boundary finite element methodSloshing is an inevitable phenomenon in an ocean-going vessel that can have adverse effects. In this work, the mitigation of sloshing is investigated using multiple thin porous baffles of various…Pramod, Aln, Choudhury et al.·Sep 5, 2026SaveLearn
Coupled Analytical Model for the Internal Boundary Layer Height, Wall Shear Stress and Mean Velocity Behind a Surface Roughness Transition in Boundary-Layer FlowA coupled analytical framework is developed to predict the internal boundary layer (IBL) height, wall shear stress and the mean velocity profile downstream of a surface roughness transition in a…Kingshuk Mondal, Niranjan S. Ghaisas·Sep 5, 2026SaveLearn
Phase Reduction Analysis of Transonic BuffetThis paper develops a phase-reduced description of transonic buffet, treating buffet as a stable autonomous fluid limit cycle that is weakly perturbed by harmonic structural motion. When combined…Michael Candon, Earl Dowell·Sep 5, 2026SaveLearn
Unsteady Thin-Airfoil Theory Revisited: An Approximate Analytical Solution and the Self-Similar Wagner Effect in Viscous FlowsAn approximate analytical solution for the unsteady lift of a thin airfoil with a general unsteady motion is derived from a viscous-flow perspective, where the wake vortex-sheet strength is given in…Tianshu Liu, Jianfeng Lin, Shizhao Wang·Sep 5, 2026SaveLearn
Direct Numerical Simulation of Thermoacoustically Unstable Flames Via Non-Drifting Acoustic Delay Characteristic Boundary ConditionsThermoacoustic instability in premixed flames results from the coupling between the flame's heat release, as determined by combustion parameters, and surrounding acoustics, as determined by…Benjamin L. Cookman, Jack R. C. King, Raphaël C. Assier et al.·Sep 4, 2026SaveLearn
An Aeroelastic Solver Integrating Reformulated-Vortex-Particle and Finite-Element Methods across Non-Conforming InterfacesWe present VarFlExI (Variable Fidelity Unsteady Flow-FEniCS Exchange Interface), a modular aeroelastic solver for modeling two-way fluid-structure interaction (FSI) of flexible lifting…Neeraj Balachandar, A. Padmaprabhan, Vishnu R. Unni·Sep 4, 2026SaveLearn