Fluctuating interfaces in barotropic beta-plane turbulenceZonal jets manifest themselves as bands with sharp interfaces in the vorticity configuration. We develop an algorithm to track these fluctuating vorticity interfaces and systematically investigate…Sandip Sahoo, Samriddhi Sankar Ray·Jul 31, 2025SaveLearn
From vortices to forces - a data-driven framework for unsteady lift generation in three-dimensional vortex-dominated flowsTime-varying flow-induced forces on bodies immersed in fluid flows play a key role across a range of natural and engineered systems, from biological locomotion to propulsion and energy-harvesting…Suryansh Prakhar, Jung-Hee Seo, Rajat Mittal·Jul 30, 2025SaveLearn
Extensional rheology of dilute suspensions of spheres in polymeric liquidsThe extensional rheology of dilute suspensions of spheres in viscoelastic or polymeric liquids is studied computationally. At low polymer concentration (c) and Deborah number (De), a wake of highly…Arjun Sharma, Donald L. Koch·Jul 30, 2025SaveLearn
TURB-Smoke. A database of Lagrangian pollutants emitted from point-sources and dispersed in turbulent flowsIdentifying the location and characteristics of pollution sources in turbulent flows is challenging, especially for environmental monitoring and emergency response, due to sparse, stochastic, and…Luca Biferale, Fabio Bonaccorso, Niccolò Cocciaglia et al.·Jul 30, 2025SaveLearn
Effects of strong turbulence for water wavesThe results of direct numerical simulation of plane-symmetric turbulence of water waves for potential flows within the framework of conformal variables taking into account low-frequency pumping and…E. A. Kochurin, E. A. Kuznetsov·Jul 30, 2025SaveLearn
Pinning mediated coalescence-induced lateral droplet motion on nanotextured superhydrophobic surfaceDroplets coalescing on a superhydrophobic surface exhibit coalescence-induced droplet jumping. However, water vapor condensing on a superhydrophobic surface can result in simultaneous formation of…Raushan Kumar, Gopal Chandra Pal, Chander Shekhar Sharma·Jul 30, 2025SaveLearn
Numerical investigation of engine position effects on contrail formation and evolution in the near-field of a realistic aircraft configurationThe present study investigates the impact of engine position on contrail formation and near-field evolution in a realistic three-dimensional aircraft configuration. Detailed numerical simulations are…Rémy Annunziata, Nicolas Bonne, François Garnier·Jul 30, 2025SaveLearn
Self-Induced Flapping Dynamics of a Horizontal Flexible sheet in a Uniform FlowThe case of a conventional flexible sheet in a uniform flow has been of interest in understanding the underlying physics of passive coupled dynamics between a flexible structure and a flow field.…Kalyani Panigrahi, Pardha S Gurugubelli, Sabareesh G R·Jul 30, 2025SaveLearn
Shear-Induced Activation and Transport of Platelets in Artificial Heart Valve FlowsAlbeit the hemodynamics of artificial heart valves has been investigated for several decades, the local shear-induced activation potential and subsequent transport phenomena of activated platelets in…Syed Samar Abbas, Iman Borazjani·Jul 29, 2025SaveLearn
Role of interfacial stabilization in the Rayleigh-B\'enard convection of liquid-liquid dispersionsBased on mesoscale lattice Boltzmann numerical simulations, we characterize the Rayleigh-B\'enard (RB) convective dynamics of dispersions of liquid droplets in another liquid phase. Our numerical…Francesca Pelusi, Andrea Scagliarini, Mauro Sbragaglia et al.·Jul 29, 2025SaveLearn
Effect of Nozzle Geometry on the Performance of Non-Assist FlaresThis study employs large-eddy simulations with a flamelet progress variable approach to systematically quantify the influence of nozzle geometry on combustion efficiency, mixing, and blowout…Ashray Mohit, Jenna Stolzman, Margaret Wooldridge et al.·Jul 29, 2025SaveLearn
Efficient Reduced Order Modeling Based on HODMD to Predict Intraventricular Flow DynamicsAccurate and efficient modeling of cardiac blood flow is crucial for advancing data-driven tools in cardiovascular research and clinical applications. Recently, the accuracy and availability of…Eneko Lazpita, Jesus Garicano-Mena, Soledad Le Clainche·Jul 29, 2025SaveLearn
diffSPH: Differentiable Smoothed Particle Hydrodynamics for Adjoint Optimization and Machine LearningWe present diffSPH, a novel open-source differentiable Smoothed Particle Hydrodynamics (SPH) framework developed entirely in PyTorch with GPU acceleration. diffSPH is designed centrally around…Rene Winchenbach, Nils Thuerey·Jul 29, 2025SaveLearn
Characterizing Intraventricular Flow Patterns via Modal Decomposition Techniques in Idealized Left Ventricle ModelsUnderstanding the formation, propagation, and breakdown of the main vortex ring (VR) is essential for characterizing left ventricular (LV) hemodynamics, as its dynamics have been linked to the onset…Eneko Lazpita, Michael Neidlin, Jesus Garicano-Mena et al.·Jul 29, 2025SaveLearn
On buoyancy in disperse two-phase flow and its impact on well-posedness of two-fluid modelsThe Maxey-Riley-Gatignol equation for the flow around a sphere at low particle Reynolds number tells us that the fluid-particle interaction force decomposes into a contribution from the local flow…Rui Zhu, Yulan Chen, Katharina Tholen et al.·Jul 29, 2025SaveLearn
The invariant rate of energy extraction by polymers in turbulencePolymeric turbulence, flows of fluids with dilute polymer additives at high Reynolds numbers, exhibits striking deviations from the Kolmogorovean behaviour of Newtonian turbulence. Recent experiments…Alessandro Chiarini, Rahul K. Singh, Marco E. Rosti·Jul 29, 2025SaveLearn
An Analysis of Stable Mode Contributions to Rayleigh-B\'enard ConvectionIn this work, we investigate the presence and impact of stable eigenmodes in Rayleigh-B\'enard convection that arises due to a temperature gradient within a fluid system. The nonlinear evolution of…Zachary R. Williams, Ava G. Lowe·Jul 28, 2025SaveLearn
Passive control of wing tip vortices through a grooved-tip designThis paper investigates the characteristics and control of tip vortices generated by a finite wing, focusing on the impact of the novel grooved-tip designs. Tip vortices can lead to flow loss, noise,…Junchen Tan, Shūji Ōtomo, Ignazio Maria Viola et al.·Jul 28, 2025SaveLearn
A Data-Driven Approach for Predicting Hydrodynamic Forces on Spherical Particles Using Volume Fraction RepresentationsParticle-laden flows are simulated at various scales using numerical techniques that range from particle-resolved Direct Numerical Simulations (pr-DNS) for small-scale systems to Lagrange…Alexander Metelkin, Sam Jacob Jacob, Bernhard Vowinckel·Jul 28, 2025SaveLearn
Effect of permeability heterogeneity on reactive convective dissolutionThe impact of permeability heterogeneity on reactive buoyancy-driven convective dissolution is analyzed numerically in the case of a bimolecular A+B reaction across varying Rayleigh numbers.…Rima Benhammadi, Anne De Wit, Juan J. Hidalgo·Jul 28, 2025SaveLearn
Near-Wall Scaling and Separation Prediction of a Rotation-Based Subgrid-Scale Stress ModelThis paper presents an in-depth analysis of a novel subgrid-scale stress model proposed in 2022, which utilizes the rotational part of the velocity gradient as the velocity scale for computing eddy…Jiawei Chen, Yifei Yu, Emran Hossen et al.·Jul 26, 2025SaveLearn
Eulerian-Lagrangian scaling of the Lyapunov exponent in homogeneous turbulenceWe present a heuristic derivation of the maximal Lyapunov exponent γ of homogeneous turbulence which yields two new relations, a sweeping relation and the scaling of the uncertainty field's…Jin Ge, Joran Rolland, John Christos Vassilicos·Jul 26, 2025SaveLearn
Passive cell body plays active roles in microalgal swimming via nonreciprocal interactionsThe cell body of flagellated microalgae is commonly considered to act merely as a passive load during swimming, and a larger body size would simply reduce the speed. In this work, we use numerical…Xiaoping Hu, Zhaorong Liu, Da Wei et al.·Jul 25, 2025SaveLearn
Boundary-layer transition in the age of data: from a comprehensive dataset to fine-grained predictionThe laminar-to-turbulent transition remains a fundamental and enduring challenge in fluid mechanics. Its complexity arises from the intrinsic nonlinearity and extreme sensitivity to external…Wenhui Chang, Hongyuan Hu, Youcheng Xi et al.·Jul 25, 2025SaveLearn
Deterministic diffusion models for Lagrangian turbulence: robustness and encoding of extreme eventsModeling Lagrangian turbulence remains a fundamental challenge due to its multiscale, intermittent, and non-Gaussian nature. Recent advances in data-driven diffusion models have enabled the…Tianyi Li, Flavio Tuteri, Michele Buzzicotti et al.·Jul 25, 2025SaveLearn