Spatiotemporal statistics of the dissipation rate at the boundary of a turbulent flow using Diffusing-Wave SpectroscopyWe use Diffusing Wave Spectroscopy (DWS) to perform the first direct space- and time-resolved measurement of the dissipation rate~ε at the boundary of a turbulent flow. We have shown in a…Enzo Francisco, Julien Lambret, Sébastien Aumaître·Nov 5, 2025SaveLearn
On the role of back-propagating pressure suppression in enhancing the pressure-gain performance of quasi-2D rotating detonation enginesThe total pressure gain (PG) characteristics of the quasi-2D rotating detonation engine (RDE) are numerically investigated in this study, based on an abstract check valve model and the quasi-1D…Tonghui Wang, Guoqing Zhang, Haocheng Wen·Nov 5, 2025SaveLearn
Meshless data-driven decompositions with RBF-based inner productsData-driven modal decompositions are useful tools for compressing data or identifying dominant structures. Popular ones like the dynamic mode decomposition (DMD) and the proper orthogonal…Manuel Ratz, Alessandro Parente, Miguel Alfonso Mendez·Nov 5, 2025SaveLearn
A Hybrid CNN-Cheby-KAN Framework for Efficient Prediction of Two-Dimensional Airfoil Pressure DistributionThe accurate prediction of airfoil pressure distribution is essential for aerodynamic performance evaluation, yet traditional methods such as computational fluid dynamics (CFD) and wind tunnel…Yaohong Chen, Luchi Zhang, Yiju Deng et al.·Nov 5, 2025SaveLearn
Fast droplet impact onto slowly moving deep poolsWhen a fast droplet impacts a pool, the resulting ejecta sheet dynamics determine the final impact outcome. At low Capillary numbers, the ejecta sheet remains separate from a deep static pool, whilst…Thomas C. Sykes, Luke F. L. Alventosa, J. Rafael Castrejon-Pita et al.·Nov 5, 2025SaveLearn
Comparative Investigations on Active and Passive Tails of Undulating SwimmersFish display remarkable swimming capabilities through the coordinated interaction of the body and caudal fin, yet the potential role of a passively pitching tail in enhancing hydrodynamic performance…Dev Pradeepkumar Nayak, Ali Tarokh, Muhammad Saif Ullah Khalid·Nov 4, 2025SaveLearn
Simultaneous evaporation and imbibition of a droplet on a flooded porous substrateA mathematical model for the evolution of, and deposition from, a thin particle-laden droplet on an infinitely thick, isotropic, flooded, porous substrate with interconnected pores undergoing…David Craig, Alexander W. Wray, Khellil Sefiane et al.·Nov 4, 2025SaveLearn
Observer-based neural networks for flow estimation and controlNeural network observers (NNOs) are proposed for real-time estimation of fluid flows, addressing a key challenge in flow control: obtaining real-time flow states from a limited set of sparse and…Tarcísio C. Déda, William R. Wolf, Scott T. M. Dawson et al.·Nov 4, 2025SaveLearn
Generalizable super-resolution turbulence reconstruction from minimal training dataFully resolving turbulent flows remains challenging due to turbulent systems' multiscale complexity. Existing data-driven approaches typically demand expensive retraining for each flow scenario and…Wu Haokai, Cao Yong, Chen Yaoran et al.·Nov 4, 2025SaveLearn
Simulation of a Non-Newtonian drop impact on a rigid surface: A mess-free approachThe present study explores the impact of a non-Newtonian fluid drop on a rigid surface using a mesh-free approach, Smoothed Particle Hydrodynam-ics. The complex interaction between viscous and…Tapan Jana, Amit Shaw, L. S. Ramachandra·Nov 4, 2025SaveLearn
Role of varying Reynolds number for flow past a rotating cylinder at high rotation rateThe present study reports comprehensive bifurcation analysis of flow past a rotating cylinder at a fixed rotation rate by varying free-stream Reynolds number (Re∞) from 1000-6000 in…Aditi Sengupta, Santosh Kumar, Sanjeev Kumar·Nov 4, 2025SaveLearn
Particle Thermal Inertia Delays the Onset of Convection in Particulate Rayleigh-B\'enard SystemWe investigate the linear stability of a thermally stratified fluid layer confined between horizontal walls and subject to continuous injection of dilute thermal particles at one boundary and…Saad Raza, Apolline Lemoine, Yan Zhang et al.·Nov 3, 2025SaveLearn
Geometry-driven jets underlie dispersal of plants and fungi by raindropsThe impact of droplets on concave surfaces is poorly understood, although it is relevant to a mode of dispersal that has evolved independently in several species of plants and fungi. This mode relies…Ana-Maria Bratu, Valentin Laplaud, Antoine Garcia et al.·Nov 3, 2025SaveLearn
Constraint Penalization Method in the Lattice Boltzmann Method (LBM) for Fluid-Structure InteractionA constraint penalization method is introduced within the Lattice Boltzmann (LBM) framework to model fluid-structure interactions involving rigid bodies. The proposed approach extends the fictitious…Tristan Millet, Erwan Liberge·Nov 3, 2025SaveLearn
The dual solution stability gap bounded by sub- and supercritical geometric thresholds in steady shock reflectionIn this paper, we examine the significance of the lower geometric limit, defined as the trailing-edge height at which the reflected shock grazes the trailing edge, for both regular reflection (RR)…Xue-Ying Wang, Zi-Niu Wu·Nov 3, 2025SaveLearn
HFNO: an interpretable data-driven decomposition strategy for turbulent flowsFourier Neural Operators (FNOs) have demonstrated exceptional accuracy in mapping functional spaces by leveraging Fourier transforms to establish a connection with underlying physical principles.…Marco Cayuela, Vincent Le Chenadec, Peter Schmid et al.·Nov 3, 2025SaveLearn
Convective flux analysis on the propagation mechanism of oblique detonation wavesThe aim of this study is to investigate the propagation mechanism of oblique detonation waves using the vector flux analysis method through numerical simulations. A two-dimensional numerical study is…Yunfeng Liu·Nov 3, 2025SaveLearn
Two-point Turbulence Closures in Physical SpaceThis work presents a predictive two-point statistical closure framework for turbulence formulated in physical space. A closure model for ensemble-averaged, incompressible homogeneous isotropic…Noah Zambrano, Karthik Duraisamy·Nov 1, 2025SaveLearn
Importance of the continuous spectrum in the excitation of sheared surface gravity wavesThe initial value problem is solved for the excitation of long surface gravity waves in a continuously sheared flow. This reveals the presence of a continuous spectrum along side the standard normal…Jeffrey R. Carpenter·Nov 1, 2025SaveLearn
Extraction of Moment Closures for Strongly Non-Equilibrium Flows via Machine LearningWe introduce a machine learning framework for moment-equation modeling of rarefied gas flows, addressing strongly non-equilibrium conditions inaccessible to conventional computational fluid dynamics.…Hang Song, Satyvir Singh, Manuel Torrilhon et al.·Nov 1, 2025SaveLearn
Bubble damping of non-stationary oscillatory flow stabilization in microfluidic systemsThe inherent instability of oscillatory flows presents a significant challenge in microfluidics, impairing performance in different applications from particle detachemnt to organs-on-a-chip. Trapped…Andreu Benavent-Claró·Nov 1, 2025SaveLearn
Evaluating simulation techniques for lubricant distribution in gearboxesEfficient lubrication is crucial for the performance and durability of high-speed gearboxes, particularly under varying load conditions. Excess lubrication leads to increased churning losses, while…Pawan S. Murthy, Anja Lippert, Andrea Beck·Nov 1, 2025SaveLearn
Jet drop production from bubbles with neighborsBubbles bursting at the surface of the ocean produce drops that heavily influence ocean-atmosphere interactions. One of the mechanisms through which drops are formed is called jet drop production,…Tristan Aurégan, Noé Daniel, Megan Mazzatenta et al.·Oct 31, 2025SaveLearn
Uncertainty Quantification in Resolvent Analysis of Experimental Wall-Bounded Turbulent FlowsExperimental mean flows are commonly used to study wall-bounded turbulence. However, these measurements are often unable to resolve the near-wall region and thus introduce ambiguity in the velocity…Salvador Rey Gomez, Tomek Jaroslawski·Oct 31, 2025SaveLearn
Blast wave induced unsteady flow at the shock tube openingShock tubes have been a crucial device, facilitating studies across a wide range of practical applications. An open-ended shock tube employing the wire-explosion technique with a rectangular cross…Saini Jatin Rao, Akhil Aravind, Saptarshi Basu·Oct 31, 2025SaveLearn