Diffusioosmotic flow in a soft microfluidic configuration induces fluid-structure instabilityDiffusioosmotic flow arises in microfluidic configurations due to solute concentration gradients. In soft microfluidic channels, internal pressure gradients generated by diffusioosmotic flow to…Nataly Maroundik, Dotan Ilssar, Evgeniy Boyko·Jul 25, 2025SaveLearn
Optimizing Metachronal Paddling with Reinforcement Learning at Low Reynolds NumberMetachronal paddling is a swimming strategy in which an organism oscillates sets of adjacent limbs with a constant phase lag, propagating a metachronal wave through its limbs and propelling it…Alana A. Bailey, Robert D. Guy·Jul 24, 2025SaveLearn
Resolvent-based estimation of a turbulent wakeWe present a resolvent-based framework for estimating turbulent velocity fluctuations in the wake of a spanwise-periodic NACA0012 airfoil at Mach 0.3, Reynolds number 23,000, and an angle of attack…Junoh Jung, Aaron Towne·Jul 24, 2025SaveLearn
Reduced-order modeling of large-scale turbulence using Koopman β-variational autoencodersReduced-order models (ROMs) are very popular for surrogate modeling of full-order computational fluid dynamics (CFD) simulations, allowing for real-time approximation of complex flow phenomena.…Rakesh Halder, Benet Eiximeno, Oriol Lehmkuhl·Jul 24, 2025SaveLearn
An integrated theoretical, experimental, and numerical study of small-amplitude water wavesWe introduce an inexpensive experimental setup for analyzing free-surface water waves: a 1\,m-long tabletop flume made from perspex, driven by a variable-frequency piston wavemaker built…Lennon Ó Náraigh, Nicolas Farault, Nicola Young·Jul 24, 2025SaveLearn
Variational determination of minimal absorbing zones in incompressible shear flowsThe dynamical analysis of shear flows remains challenging, as turbulence generation and evolution are not fully understood. Here, a lesser-explored feature of incompressible shear flows-the absorbing…Péter Tamás Nagy·Jul 24, 2025SaveLearn
Hierarchical Dimensionless Learning (Hi-π): A physics-data hybrid-driven approach for discovering dimensionless parameter combinationsDimensional analysis provides a universal framework for reducing physical complexity and reveal inherent laws. However, its application to high-dimensional systems still generates redundant…Mingkun Xia, Haitao Lin, Weiwei Zhang·Jul 24, 2025SaveLearn
Stability theory for metal pad roll with consideration of viscous and magnetic dampingWe present a new theoretical model for the analytical prediction of the metal pad roll instability in idealised aluminium reduction cells consisting of two stably stratified liquid layers, which…Pranav Hegde, Wietze Herreman, Gerrit Maik Horstmann·Jul 24, 2025SaveLearn
Taylorx2013Aris dispersion of active particles in oscillatory channel flowMass dispersion in oscillatory flows is intimately linked to various environmental and biological processes, offering a distinct contrast to dispersion in steady flows due to the periodic expansion…Bohan Wang, Weiquan Jiang, Li Zeng et al.·Jul 24, 2025SaveLearn
On zero-order consistency residue and background pressure for the conservative SPH fluid dynamicsAs one of the major challenges for the conservative smoothed particle hydrodynamics (SPH) method, the zero-order consistency issue, although thought to be mitigated by the particle regularization…Feng Wang, Xiangyu Hu·Jul 24, 2025SaveLearn
Critical bubble bursting in real water. Effect of surface-active contaminantsWe study the bursting of a bubble on a liquid free surface under critical conditions, i.e., those leading to the minimum (maximum) size (velocity) of the first-emitted jet droplet. Our experiments…S. Rodríguez-Aparicio, A. Cebrián-García, E. J. Vega et al.·Jul 23, 2025SaveLearn
Chaotic/turbulent cross-helical MHD dynamo: from laboratory to the SunUsing the results of laboratory experiments and direct numerical simulations, as well as observations of the full-disc solar magnetic field and sunspot number dynamics, it is demonstrated that…A. Bershadskii·Jul 23, 2025SaveLearn
Fluctuations around Turbulence ModelsNumerical simulations of turbulent flows at realistic Reynolds numbers generally rely on filtering out small scales from the Navier Stokes equations and modeling their impact through the Reynolds…Flavio Tuteri, Alexandros Alexakis, Sergio Chibbaro·Jul 23, 2025SaveLearn
Evaporation of a deformable droplet under convectionEvaporation of a deformable droplet under convection is investigated and the performance of the classical and Abramzon-Sirignano (A-S) models is evaluated. Using the Immersed Boundary/Front-Tracking…Faraz Salimnezhad, Metin Muradoglu·Jul 23, 2025SaveLearn
Dispersion of active particles in oscillatory Poiseuille flowActive particles exhibit complex transport dynamics in flows through confined geometries such as channels or pores. In this work, we employ a generalized Taylor dispersion (GTD) theory to study the…Vhaskar Chakraborty, Pankaj Mishra, Mingfeng Qiu et al.·Jul 22, 2025SaveLearn
Elastic turbulence hides in the small scales of inertial polymeric turbulenceGaining a fundamental understanding of turbulent flows of dilute polymer solutions has been a challenging and outstanding problem for a long time. In this letter, we examine homogeneous, isotropic…Piyush Garg, Marco Edoardo Rosti·Jul 22, 2025SaveLearn
Pixel-Resolved Long-Context Learning for Turbulence at Exascale: Resolving Small-scale Eddies Toward the Viscous LimitTurbulence plays a crucial role in multiphysics applications, including aerodynamics, fusion, and combustion. Accurately capturing turbulence's multiscale characteristics is essential for reliable…Junqi Yin, Mijanur Palash, M. Paul Laiu et al.·Jul 22, 2025SaveLearn
Perpendicular rod wake/aerofoil interaction: microphone array and TR-PIV insights via SPOD and beamforming analysisThis paper investigates the acoustic and velocity fields due to a circular rod and an aerofoil placed in the wake of, and perpendicular to, a rod. Simultaneous measurements were conducted using a…Filipe Ramos do Amaral, Marios Ioannis Spiropoulos, Florent Margnat et al.·Jul 22, 2025SaveLearn
A Finite Volume and Levenberg-Marquardt Optimization Framework for Benchmarking MHD Flows over Backward-Facing StepsThis study examines the hydrodynamic and magnetohydrodynamic numerical solution of an electrically conducting fluid flow in a backward facing step (BFS) geometry under the influence of an external,…Spyridon C. Katsoudas, Grigorios T. Chrimatopoulos, Michalis A. Xenos et al.·Jul 22, 2025SaveLearn
A Taylor swimming sheet under a finite Brinkman layerAn asymptotic approach is employed to study the swimming speed of a two-dimensional Taylor swimming sheet beneath a Brinkman layer of finite thickness. This configuration is representative of a…Tasawar Iqbal, Catherine Penington, Christian Thomas et al.·Jul 22, 2025SaveLearn
Data-driven Mori-Zwanzig modeling of Lagrangian particle dynamics in turbulent flowsThe dynamics of Lagrangian particles in turbulence play a crucial role in mixing, transport, and dispersion in complex flows. Their trajectories exhibit highly non-trivial statistical behavior,…Xander de Wit, Alessandro Gabbana, Michael Woodward et al.·Jul 21, 2025SaveLearn
Bounds on the Spreading Radius in Droplet Impact: The Two-Dimensional CaseWe consider the problem of a cylindrical (quasi-two-dimensional) droplet impacting on a hard surface. Cylindrical droplet impact can be engineered in the laboratory, and a theoretical model of the…Lennon Ó Náraigh, Nicola Young·Jul 21, 2025SaveLearn
Wave-induced drift in third-order deep-water theoryThe goal of this work is to investigate particle motions beneath unidirectional, deep-water waves up to the third-order in nonlinearity. A particular focus is on the approximation known as Stokes…Raphael Stuhlmeier·Jul 21, 2025SaveLearn
Multi-Scale Data Assimilation in Turbulent ModelsWe explore the potential of Data-Assimilation (DA) within the multi-scale framework of a shell model of turbulence, with a focus on the Ensemble Kalman Filter (EnKF). The central objective is to…Francesco Fossella, Luca Biferale, Alberto Carrassi et al.·Jul 21, 2025SaveLearn
Three-dimensional numerical study on hydrogen bubble growth at electrodeThree-dimensional direct numerical simulation of electrolysis is applied to investigate the growth and detachment of bubbles at electrodes. The moving gas-liquid interface is modeled employing the…Wei Qin, Tian Long, Jacob Maarek et al.·Jul 21, 2025SaveLearn