Multiscale super-resolution reconstruction of fluid flows with deep neural networksWe present a novel multiscale super-resolution framework (SRLBM) that applies deep learning directly to the mesoscopic density distribution functions of the lattice Boltzmann method for high-fidelity…Gengchao Yang, Renyu Luo, Qinghe Yao et al.·Sep 18, 2025SaveLearn
On the algebraic stretching dynamics of variable-density mixing in shock-bubble interactionThe mixing mechanism within a single-vortex has been a theoretical focus for decades, while remains unclear especially under variable-density (VD) scenario. This study investigates canonical…Xu Han, Bin Yu, Hong Liu·Sep 18, 2025SaveLearn
Immersed Boundary Projection Method for Navier Slip BoundariesA formulation of the immersed boundary method for incompressible flow over bodies with surface slip described by the Navier boundary condition is presented. In the present method, the wall slip…Takehiro Fujii, Takeshi Omori·Sep 18, 2025SaveLearn
Optimizing the Interplay Between the Chord-to-Radius Ratio, Camber and Pitch of Cross-Flow Turbine BladesThis study examines the combined impact of the chord-to-radius ratio (c/R), blade camber, and preset pitch on cross-flow turbine performance. While prior research has examined individual effects of…Ari Athair, Aidan Hunt, Han-Wen Chi et al.·Sep 17, 2025SaveLearn
Impacts of Blade Camber on Cross-Flow Turbine Performance and LoadingCross-flow turbines show promise for renewable energy generation from wind and tidal sources. The rotating reference frame of cross-flow turbine blades results in virtual camber and incidence due to…Ari Athair, Caelan Consing, Jennifer A. Franck et al.·Sep 17, 2025SaveLearn
A proposal for automated turbulence modellingSolving the Reynolds-averaged Navier-Stokes equations (RANS) closed with an eddy viscosity computed through a turbulence model is still the leading approach for Computational Fluid Dynamics…Marco Castelletti, Maurizio Quadrio·Sep 17, 2025SaveLearn
Spherically symmetric counterflow turbulence in open geometryWe report preliminary results on spherical thermal counterflow generated by a small central heater in an open geometry, an open bath of superfluid He~II, as closed-cell experiments could have…Tomáš Dunca, Filip Novotný, Marek Talíř et al.·Sep 17, 2025SaveLearn
Flow-driven hysteresis in the transition boiling regimeTransition boiling is an intermediate regime occurring between nucleate boiling, where bubbles at the surface efficiently carry heat away, and film boiling, where a layer of vapor formed over the…Alessandro Gabbana, Xander M. de Wit, Linlin Fei et al.·Sep 17, 2025SaveLearn
Entropy-patch choked-nozzle interaction: quasi-steady and inertial modeling regimes mapped and limits of linearization establishedThe effects of entropy-patch shape, size, and strength on the upstream acoustic response generated by entropy-patch choked-nozzle interactions are investigated. Numerical-simulation-based…Karim Elbakly, Steven John Hulshoff, Friedrich Bake et al.·Sep 17, 2025SaveLearn
Surfing on chemical waves: a simple yet dynamically rich two-sphere responsive gel swimmerSelf-oscillating gels are chemically-responsive hydrogels coupled to an oscillating chemical reaction of a stimulus solute. In response to the oscillating solute concentration field, responsive gels…Joseph J. Webber, Thomas D. Montenegro-Johnson·Sep 17, 2025SaveLearn
Shape optimization for trailing-edge noise reduction using large-eddy simulation and ensemble-based methodIn this work, the trailing-edge shape of an airfoil is optimized to reduce the acoustic noise based on large-eddy simulation (LES). It is achieved by the ensemble Kalman method, which can enhance the…Qingyong Luo, Xin-Lei Zhang, Guowei He·Sep 17, 2025SaveLearn
Droplet at the Corner of a V-Shaped FiberA fundamental question in the physics of droplet--fiber interactions is: What is the maximum droplet volume a fiber can retain? While this problem has been studied for horizontal fibers and at the…Yi Zhang, Apurav Tambe, Zhao Pan·Sep 17, 2025SaveLearn
Bioluminescence in turbulence: intermittent straining lights up dinoflagellatesDinoflagellates are marine phytoplankton that emit flashes of light in response to flow-induced deformation; they are responsible for illuminating breaking-waves, wakes of ships, and other intensely…Praphul Kumar, Jason R. Picardo·Sep 16, 2025SaveLearn
Numerical Investigations of Jet A Hexane Binary Fuel Droplet Impact on a Heated Solid SurfaceIn the present work, Jet A-Hexane binary fuel droplet impact dynamics on heated solid surfaces were studied numerically. This study is crucial for practical applications such as fuel injection in…Arghya Paul, Kanak Raj, Pratim Kumar·Sep 16, 2025SaveLearn
Virtual states and exponential decay in small-scale dynamoWe develop the Kazantsev theory of small-scale dynamo generation at small Prandtl numbers near the generation threshold and restore the concordance between the theory and numerical simulations: the…A. V. Kopyev, V. A. Sirota, A. S. Il'yn et al.·Sep 16, 2025SaveLearn
Spatiotemporally Resolved Measurements of CO2 Distribution at the Air-Water Interface Using Tunable Diode Laser SpectroscopyThe transport of CO2 across the air-water interface is central to physical oceanography and carbon sequestration. A comprehensive understanding of this process requires high-resolution diagnostics of…Dongfang Zhao, Yumin Shi, Shengkai Wang·Sep 16, 2025SaveLearn
Quantitative 3D Morphology of Cellular H2/O2/N2 Flames on a Porous-Plug Burner: Spatially Resolved Measurements of Temperature and OH RadicalThis study presents a systematic characterization of burner-stabilized lean hydrogen flame morphology across a wide range of equivalence ratios, dilution factors, and flow rates. Spatially resolved…Zeyu Yan, Xiangyu Nie, Shuoxun Zhang et al.·Sep 16, 2025SaveLearn
Density-based topology optimization strategy for optimal design of uniform flow manifoldsUniform flow distribution across parallel channels directly impacts the performance and efficiency of many fluid and energy systems. However, designing efficient flow manifolds that ensure uniform…Sanjay Vermani, Nitish Anand·Sep 16, 2025SaveLearn
Extreme vertical drafts as drivers of Lagrangian dispersion in stably stratified turbulent flowsThe dispersion of Lagrangian particle pairs is a fundamental process in turbulence, with implications for mixing, transport, and the statistical properties of particles in geophysical and…Christian Reartes, Pablo D. Mininni, Raffaele Marino·Sep 16, 2025SaveLearn
Augmenting a pure and hybrid vertical equilibrium scheme via data-driven surrogate modellingVertical equilibrium (VE) models have been introduced as computationally efficient alternatives to traditional mass and momentum balance equations for fluid flow in porous media. Since VE models are…Ivan Buntic, Bernd Flemisch·Sep 16, 2025SaveLearn
Holes in Sheets: Double-Threshold Rupture of Draining Liquid FilmsClassical rupture is attributed to molecular (van der Waals) forces acting at nanometric thicknesses. Nonetheless, micron-thick liquid sheets routinely perforate far above the scale where these…Ayush K. Dixit, Chunheng Zhao, Stéphane Zaleski et al.·Sep 16, 2025SaveLearn
Grooves spacing govern water retention during condensationCondensation on vertical surfaces leads to fluid retention, which limits the efficiency of applications ranging from heat exchangers to atmospheric water harvesters. A common strategy is to structure…Matteo Leonard, Nicolas Vandewalle·Sep 16, 2025SaveLearn
Relaminarization of turbulent puffs in pipe flowThis study examines the relaminarization of turbulent puffs in pipe flow using highly resolved direct numerical simulations at Reynolds numbers of 1880, 1900, and 1920. The exponential decay of the…Basheer A. Khan, Shai Arogeti, Oriel Shoshani et al.·Sep 16, 2025SaveLearn
A perspective on transonic buffet over an unswept finite wingTransonic buffet is a well-known aerodynamic instability of shock/boundary layer interaction in the transonic regime for aircraft. So far, this phenomenon has typically been investigated by modal and…Magan Singh, Kartik Venkatraman·Sep 16, 2025SaveLearn
A spatio-temporal random synthetic turbulent velocity field: The underlying Gaussian structureWe develop, simulate and extend an initial proposition by Chaves et al. concerning a random incompressible vector field able to reproduce key ingredients of three-dimensional turbulence in both space…Matthieu Chatelain, Júlia Domingues Lemos, Wandrille Ruffenach et al.·Sep 16, 2025SaveLearn