Equatorial blowup and polar caps in drop electrohydrodynamicsWe illuminate effects of surface-charge convection intrinsic to leaky-dielectric electrohydrodynamics by analyzing the symmetric steady state of a circular drop in an external field at arbitrary…Gunnar G. Peng, Rodolfo Brandao, Ehud Yariv et al.·Mar 21, 2024SaveLearn
A Kinetic Scheme based on Positivity Preservation with Exact Shock CaptureIn this paper, we present a kinetic model with flexible velocities that satisfy positivity preservation conditions for the Euler equations. Our 1D kinetic model consists of two velocities and employs…Shashi Shekhar Roy, S. V. Raghurama Rao·Mar 21, 2024SaveLearn
Modeling of high-pressure transient gas-liquid flow in M-shaped jumpers of subsea gas production systemsTwo-phase flow with low liquid loads is common in high-pressure natural gas offshore gathering and transmission pipelines. During gas production slowdowns or shutdowns, an accumulation of liquid in…Alexander Yurishchev, Neima Brauner, Amos Ullmann·Mar 21, 2024SaveLearn
New bounds for heat transport in internally heated convection at infinite Prandtl numberWe prove new bounds on the heat flux out of the bottom boundary, FB, for a fluid at infinite Prandtl number, heated internally between isothermal parallel plates under two kinematic…Ali Arslan, Ruben E. Rojas·Mar 21, 2024SaveLearn
Application of deep learning and inline holography to estimate the droplet size distributionWe examine five machine learning-based architectures to estimate the droplet size distributions obtained using digital inline holography. The architectures, namely, U-Net, R2 U-Net, Attention U-Net,…Someshwar Sanjay Ade, Deepa Gupta, Lakshmana Dora Chandrala et al.·Mar 21, 2024SaveLearn
Accuracy Assessment of Discontinuous Galerkin Spectral Element Method in Simulating Supersonic Free JetsThe study performs large-eddy simulations of supersonic free jet flows using the Discontinuous Galerkin Spectral Element Method (DGSEM). The main objective of the present work is to assess the…Diego F. Abreu, João Luiz F. Azevedo, Carlos Junqueira-Junior·Mar 21, 2024SaveLearn
Thrust Generation by Shark DenticlesDNS is performed for flow separation over a bump in a turbulent channel. Comparisons are made between a smooth bump configuration and one where the lee side is covered with replicas of complete shark…Benjamin S. Savino, Wen Wu·Mar 21, 2024SaveLearn
Triboelectrically mediated self-assembly and manipulation of drops at an interfaceThe fluid-fluid interface is a complex environment for a floating object where the statics and dynamics may be governed by capillarity, gravity, inertia, and other external body forces. Yet, the…Paul R. Kaneelil, J. Pedro de Souza, Günther Turk et al.·Mar 21, 2024SaveLearn
Conductive and Radiative Heat Transfer Mechanisms Inform Nusselt Number Dependence on Solid Volume Fraction for Granular FlowsGranular flows with solid particles play an important role in energy and catalysis applications. To predict thermal performance, this study develops a comprehensive discrete particle tracking flow…Bingjia Li, Zijie Chen, Rohini Bala Chandran·Mar 20, 2024SaveLearn
Following marginal stability manifolds in quasilinear dynamical reductions of multiscale flows in two space dimensionsA two-dimensional extension of a recently developed formalism for slow-fast quasilinear (QL) systems subject to fast instabilities is derived. Prior work has demonstrated that the emergent dynamics…Alessia Ferraro, Gregory P. Chini, Tobias M. Schneider·Mar 20, 2024SaveLearn
Modal analysis of the triadic interactions in the dynamics of a transitional shock wave boundary layer interactionThis work is a numerical study of a transitional shock wave boundary layer interaction (SWBLI). The main goal is to improve our understanding of the well known low-frequency SWBLI unsteadiness and…Ismaïl Ben Hassan Saïdi, Stéphane Wang, Guillaume Fournier et al.·Mar 20, 2024SaveLearn
Pore network models to determine flow statistics and structural controls in variably saturated porous mediaConceptualizing a porous media as a network of conductors sets a compromise between the oversimplifying conceptualization of the media as a bundle of capillary tubes and the computationally expensive…Ilan Ben-Noah, Juan J. Hidalgo, Marco Dentz·Mar 20, 2024SaveLearn
A fast immersed boundary method for an extruded wall geometryThe computational cost of the boundary-condition-enforced immersed boundary method (IBM) increases in the order of O(N2) as the number of Lagrangian points, N, increases. This is due…Manabu Saito, Ryoichi Kurose·Mar 20, 2024SaveLearn
Bridging scales in multiscale bubble growth dynamics with correlated fluctuations using neural operator learningThe intricate process of bubble growth dynamics involves a broad spectrum of physical phenomena from microscale mechanics of bubble formation to macroscale interplay between bubbles and surrounding…Minglei Lu, Chensen Lin, Martian Maxey et al.·Mar 20, 2024SaveLearn
Impact of Spanwise Rotation on Flow Separation and Recovery Behind a Bulge in Channel FlowsDirect numerical simulations of spanwise-rotating turbulent channel flow with a parabolic bump on the bottom wall are employed to investigate the effects of rotation on flow separation. Four rotation…Benjamin S. Savino, Wen Wu·Mar 20, 2024SaveLearn
Tuning body shape and stiffness to mitigate water-entry forcesHigh-speed water entry of projectiles and diving systems induces high forces and jerk to the entering bodies due to the development of large hydrodynamic pressure. Previous research has shown…Bart Boom, Tadd Truscott, Frank Fish et al.·Mar 20, 2024SaveLearn
Extended Spreading of Saline Droplets upon Impact on a Frosty SurfaceUnderstanding the solidification dynamics of impacted water droplets is fundamental and crucial for applications, especially with the presence of frost and salt. Here, we experimentally investigate…Hao Zeng, Feng Wang, Chao Sun·Mar 20, 2024SaveLearn
No sustained mean velocity in the boundary region of plane thermal convectionWe study the dynamics of thermal and momentum boundary regions in three-dimensional direct numerical simulations of Rayleigh-B\'enard convection for the Rayleigh number range $105 Ra …Roshan J. Samuel, Mathis Bode, Janet D. Scheel et al.·Mar 19, 2024SaveLearn
Intricacies of CO2-Basalt Interactions, Reactive Flow and Carbon Mineralization: Bridging Numerical Forecasts to Empirical RealitiesSubsurface fluid flow and solute transport are pivotal in addressing pressing energy, environmental, and societal challenges, such as geological CO2 storage. Basaltic rocks have gained prominence as…Mohammad Nooraiepour, Mohammad Masoudi, Beyene Girma Haile et al.·Mar 19, 2024SaveLearn
Surfactant-laden liquid thread breakup driven by thermal fluctuationsThe breakup of liquid threads into droplets is crucial in various applications, such as nanoprinting, nanomanufacturing, and inkjet printing, where a detailed understanding of the thinning neck…L. H. Carnevale, P. Deuar, Z. Che et al.·Mar 19, 2024SaveLearn
Simulation of the Wave Turbulence of a Liquid Surface Using the Dynamic Conformal Transformation MethodThe dynamic conformal transformation method has been generalized for the first time to numerically simulate the capillary wave turbulence of a liquid surface in the plane symmetric anisotropic…Evgeny Kochurin·Mar 19, 2024SaveLearn
Rayleigh Taylor Instability in Multiple Finite-Thickness Fluid LayersWe develop a general transfer-matrix formalism for determining the growth rate of the Rayleigh-Taylor instability in a fluid system with spatially varying density and viscosity. We use this formalism…Prashant Sharma·Mar 18, 2024SaveLearn
Phase field modelling of the detachment of bubbles from a solid substrateWe develop and implement numerically a phase field model for the evolution and detachment of a gas bubble resting on a solid substrate and surrounded by a viscous liquid. The bubble has a static…Carlos Uriarte, Marco A. Fontelos, Manuel Arrayás·Mar 18, 2024SaveLearn
The advancing wave front on a sloping channel covered by a rod canopy following an instantaneous dam breakThe drag coefficient Cd for a rigid and uniformly distributed rod canopy covering a sloping channel following the instantaneous collapse of a dam was examined using flume experiments. The…Elia Buono, Gabriel G. Katul, Davide Poggi·Mar 18, 2024SaveLearn
Coriolis effects on wind turbine wakes across atmospheric boundary layer regimesWind turbines operate in the atmospheric boundary layer (ABL), where Coriolis effects are present. As wind turbines with larger rotor diameters are deployed, the wake structures that they create in…Kirby S. Heck, Michael F. Howland·Mar 18, 2024SaveLearn