Reconstruction of three-dimensional turbulent flows from sparse and noisy planar measurements: A weight-sharing neural network approachThis paper proposes a method for reconstructing three-dimensional turbulent flows from sparse measurements without the need for ground truth data during training. A weight-sharing network is…Yaxin Mo, Luca Magri·Sep 23, 2025SaveLearn
Comparison of turbulence statistics in isothermal and non-isothermal large eddy simulations of supercritical carbon dioxide jetsSupercritical carbon dioxide is of interest in a wide range of engineering problems, including carbon capture, utilization, and storage as well as advanced cycles for power generation. Non-ideal…Julia Ream, Marc T. Henry de Frahan, Shashank Yellapantula et al.·Sep 23, 2025SaveLearn
Quantifying Sand Transport Sensitivity to Dune Shape: Field-Validated CFD with AirSketcherCoastal dune management often alters crest and lee geometry, yet quantifying the transport impact of small shape changes is difficult without heavy models. This paper presents a streamlined,…Wichai Pattanapol, Kanisorn Thanutwutthigorn, Tipaporn Homdee·Sep 23, 2025SaveLearn
Artificial Bottleneck Effect in Large Eddy SimulationsIn Navier-Stokes turbulence, a bottleneck effect in the energy cascade near the viscous cutoff causes an overshoot in the energy spectrum, or spectral bump, relative to Kolmogorov's -5/3 scaling. A…Mostafa Kamal, Perry L. Johnson·Sep 23, 2025SaveLearn
Wake dynamics of a square cylinder while moving upward in quiescent waterWe experimentally investigate the wake dynamics of a square cylinder rising through quiescent water over a range of Froude numbers (Fr). Time-resolved Particle Image Velocimetry provides…Intesaaf Ashraf, Stephane Dorbolo, Neetu Tiwari·Sep 22, 2025SaveLearn
Whistling of turbulent cavity flows: Self-consistent predictions with the linearized compressible Navier-Stokes equationsA self-consistent saturation model for the prediction of aeroacoustic limit cycles emerging in turbulent low-Mach cavity flows (Re=O(105), M 0.2) is proposed. It predicts the nonlinear…Nikolaos Bozikis, Dilara Özev, Nicolas Noiray·Sep 22, 2025SaveLearn
Characterization of boundary layers on isothermal and adiabatic curved surfaces of a supersonic turbine cascadeThe effects of adiabatic and isothermal boundary conditions are investigated on the shock-boundary layer interactions (SBLIs) in a supersonic turbine cascade. Special attention is given to the…Gabriel Y. R. Hamada, Hugo F. S. Lui, William R. Wolf et al.·Sep 22, 2025SaveLearn
A Comparison of LES Inlet Boundary Conditions for Supersonic Jet FlowsThe present work evaluates the effects of three inflow boundary conditions on large-eddy simulations of supersonic jet flows. The three inlet flow configurations considered are an inviscid profile, a…Diego F. Abreu, Carlos Junqueira-Junior, Eron T. V. Dauricio et al.·Sep 22, 2025SaveLearn
A Comparison of Low and high-Order Methods for the Simulation of Supersonic Jet FlowsThe present work compares results for different numerical methods in search of alternatives to improve the quality of large-eddy simulations for the problem of supersonic turbulent jet flows.…D. F. Abreu, C. Junqueira-Junior, E. T. V. Dauricio et al.·Sep 22, 2025SaveLearn
A zero-dimensional global conservation model to determine non-ideal nozzle conditions for gas injectionsTo reduce computation times of simulations involving gas fueled internal combustion engines (ICEs), a model is developed that determines non-ideal nozzle exit conditions to spare expensive…N. Diepstraten, L. M. T. Somers, J. A. van Oijen·Sep 22, 2025SaveLearn
Compact representation of transonic airfoil buffet flows with observable-augmented machine learningTransonic buffet presents time-dependent aerodynamic characteristics associated with shock, turbulent boundary layer, and their interactions. Despite strong nonlinearities and a large degree of…Kai Fukami, Yuta Iwatani, Soju Maejima et al.·Sep 22, 2025SaveLearn
JPResUnet: A Joint Probability Density Function Translation Model in Partially Premixed FlamesMachine learning (ML) models are often constrained by their limitations in extrapolation, which restricts their applicability in engineering contexts. Conversely, while exhibiting broad generality,…Hanying Yang, James C. Massey, Nedunchezhian Swaminathan·Sep 22, 2025SaveLearn
Analysis of the Rarefied Flow at Micro-Step using a DeepONet Surrogate Model with a Physics-Guided Zonal Loss FunctionThe Direct Simulation Monte Carlo (DSMC) method remains the gold standard for simulating rarefied gas flows but is prohibitively expensive for parametric and many-query applications. To address this…Ehsan Roohi, Amirmehran Mahdavi·Sep 21, 2025SaveLearn
Super-resolution reconstruction of turbulent flows from a single Lagrangian trajectoryWe studied the reconstruction of turbulent flow fields from trajectory data recorded by actively migrating Lagrangian agents. We propose a deep-learning model, track-to-flow (T2F), which employs a…Hua-Lin Wu, Ao Xu, Heng-Dong Xi·Sep 21, 2025SaveLearn
Transport barriers for microswimmers in unsteady flowCertain flow structures trap active microorganisms over extended periods, impacting mortality and growth by inhibiting foraging, exploration, and predator evasion. We show that transport barriers and…L. Storm, J. Qiu, K. Gustavsson et al.·Sep 19, 2025SaveLearn
Non-Newtonian viscous fluid models with learned rheology accurately reproduce Lagrangian sea ice simulationsPolar sea ice is crucial to Earth's climate system. Its dynamics also affect coastal communities, wildlife, and global shipping. Sea ice is typically modeled as a continuum fluid using a model…Gonzalo G. de Diego, Georg Stadler·Sep 19, 2025SaveLearn
On the application of refractive index matching to study the buoyancy-driven motion of spheresRefractive index matching (RIM) is a powerful tool for multiphase flow studies as it eliminates optical distortions and enables high-fidelity tomographic measurements near solid-fluid interfaces of…Jibu Tom Jose, Aviel Ben-Harosh, Omri Ram·Sep 19, 2025SaveLearn
kh2d-solver: A Python Library for Idealized Two-Dimensional Incompressible Kelvin-Helmholtz InstabilityWe present an open-source Python library for simulating two-dimensional incompressible Kelvin-Helmholtz instabilities in stratified shear flows. The solver employs a fractional-step projection method…Sandy H. S. Herho, Nurjanna J. Trilaksono, Faiz R. Fajary et al.·Sep 19, 2025SaveLearn
Assessment of the Gradient Jump Penalisation in Large-Eddy Simulations of TurbulenceThis research investigates the efficacy of the gradient jump penalisation (GJP) in large eddy simulations (LES) when coupled with active subgrid-scale (SGS) models. GJP is a stabilisation method…Shiyu Du, Manuel Münsch, Niclas Jansson et al.·Sep 19, 2025SaveLearn
Contact line friction of bubblesContact line friction (CLF) of bubbles is ubiquitous, from bubbles on a beer glass to H2 bubbles sliding over electrodes in electrolysis. However, a fundamental understanding of CLF of bubbles is…Xicheng Bao, Aaron D. Ratschow, Xiaoteng Zhou et al.·Sep 19, 2025SaveLearn
Multiple droplets dynamics on cylindrical fiberWe investigate the descent of a single droplet on a vertical fiber and its role in generating additional droplets. As the droplet slides, it deposits a non-uniform liquid film whose thickness…J. Van Hulle, N. Vandewalle, Z. Pan·Sep 19, 2025SaveLearn
Upstream motion of oil droplets in co-axial Ouzo flow due to Marangoni forcesTo explore the physicochemical hydrodynamics of phase-separating ternary liquids (Ouzo-type), a binary oil-ethanol mixture is introduced into a co-flowing stream of water. Oil droplets nucleate at…Steffen Bisswanger, Duarte Rocha, Sebastian Dehe et al.·Sep 19, 2025SaveLearn
Numerical Study on Jet-Like Outwash Induced by Multi-Rotor eVTOLs and Engineering Approaches for Outwash MitigationThis study presents a comprehensive computational investigation of outwash phenomena generated by electric vertical takeoff and landing (eVTOL) aircraft, with particular emphasis on how rotor…Yen-Chen Chen, Chih-Che Chueh·Sep 19, 2025SaveLearn
Fluid flow and spatiotemporal chaos in chemically active emulsionsWe study phase-separating fluid mixtures as they demix in the presence of chemical reactions that maintain them away from thermodynamic equilibrium. We show that in such chemically active emulsions…Charu Datt, Jonathan Bauermann, Nazmi Burak Budanur et al.·Sep 19, 2025SaveLearn
Characterization of supersonic boundary layers of adiabatic and isothermal curved surfaces with shock interactionsBoundary layers of adiabatic and isothermal curved walls are investigated for a supersonic turbine cascade, including the effects of shock-boundary layer interactions (SBLIs). Wall-resolved large…Gabriel Y. R. Hamada, William R. Wolf, Hugo F. S. Lui et al.·Sep 18, 2025SaveLearn