Articles with "vortex dynamics" as a keyword



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Gluing Methods for Vortex Dynamics in Euler Flows

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Published in 2019 at "Archive for Rational Mechanics and Analysis"

DOI: 10.1007/s00205-019-01448-8

Abstract: A classical problem for the two-dimensional Euler flow for an incompressible fluid confined to a smooth domain is that of finding regular solutions with highly concentrated vorticities around N moving vortices . The formal dynamic… read more here.

Keywords: euler; vortex dynamics; dynamics euler; euler flows ... See more keywords
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Vortex dynamics mechanisms of separated boundary layer in a highly loaded low pressure turbine cascade

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Published in 2020 at "International Journal of Heat and Fluid Flow"

DOI: 10.1016/j.ijheatfluidflow.2020.108540

Abstract: Abstract This paper investigates the vortex dynamics in the suction-side boundary layer on an aero-engine low pressure turbine blade at two different Reynolds numbers at which short and long laminar separation bubbles occur. Different vortical… read more here.

Keywords: vortex dynamics; vortex; layer; pressure turbine ... See more keywords

Vortex dynamics and Reynolds number effects of an oscillating hydrofoil in energy harvesting mode

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Published in 2020 at "Journal of Fluids and Structures"

DOI: 10.1016/j.jfluidstructs.2020.102888

Abstract: The energy extraction potential from the sinusoidal heaving and pitching motion of an elliptical hydrofoil is explored through direct numerical simulations (DNS) at a Reynolds number of 1,000 and large eddy simulations (LES) at a… read more here.

Keywords: vortex dynamics; hydrofoil; energy harvesting; number ... See more keywords

Comparative study of vortex dynamics in CaKFe4As4 and Ba0.6K0.4Fe2As2 single crystals

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Published in 2019 at "Science Bulletin"

DOI: 10.1016/j.scib.2018.12.024

Abstract: Abstract We investigate the vortex dynamics in two typical hole doped iron based superconductors CaKFe4As4 (CaK1144) and Ba0.6K0.4Fe2As2 (BaK122) with similar superconducting transition temperatures. It is found that the magnetization hysteresis loop exhibits a clear… read more here.

Keywords: vortex dynamics; temperature; bak122; 6k0 4fe2as2 ... See more keywords

Understanding liquid-jet atomization cascades via vortex dynamics

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Published in 2018 at "Journal of Fluid Mechanics"

DOI: 10.1017/jfm.2018.113

Abstract: Temporal instabilities of a planar liquid jet are studied using direct numerical simulation (DNS) of the incompressible Navier–Stokes equations with level-set (LS) and volume-of-fluid (VoF) surface tracking methods. $\unicode[STIX]{x1D706}_{2}$ contours are used to relate the… read more here.

Keywords: vortex dynamics; vortex; formation; understanding liquid ... See more keywords

Tunable magnetic vortex dynamics in ion-implanted permalloy disks.

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Published in 2020 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.0c08024

Abstract: Nanoscale, low-phase noise, tunable transmitter-receiver links are key for enabling the progress of wireless communication. We demonstrate that vortex-based spin-torque nano-oscillators, which are intrinsically low-noise devices due to their topologically-protected magnetic structure, can achieve frequency… read more here.

Keywords: dynamics ion; vortex dynamics; permalloy disks; ion ... See more keywords

Trapped vortex dynamics implemented in composite Bessel beams

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Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0187870

Abstract: The divergence-free nature of Bessel beams can be harnessed to effectively trap optical vortices in free space laser propagation. We show how to generate arbitrary vortex configurations in Bessel traps to investigate few-body vortex interactions… read more here.

Keywords: dynamics implemented; trapped vortex; implemented composite; bessel ... See more keywords

Vortex dynamics and aerodynamic modulation in dandelion-inspired microfliers: Role of folding angle-dependent stability transitions

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Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0274952

Abstract: A hollow-base umbrella-like biomimetic model inspired by the pappus structure of dandelion seeds is constructed in this study, and its vortex stability is analyzed using large eddy simulation. The power spectral density analysis of the… read more here.

Keywords: stability; reynolds number; folding angle; vortex dynamics ... See more keywords

Large-eddy simulation of vortex dynamics in transverse jet under combustor-like swirling conditions

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Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0279196

Abstract: This numerical investigation employs large-eddy simulation (LES) to systematically resolve jet-in-crossflow (JICF) phenomena with progressively increased geometric complexity, specifically targeting the aerodynamic characteristics of aero-engine combustor dilution zones. Through a staged approach beginning with fundamental… read more here.

Keywords: large eddy; jet; combustor; eddy simulation ... See more keywords

Investigation into the coupling mechanism of tailwater vortex dynamics and cavitation during pump-as-turbine operations

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Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0287323

Abstract: In order to investigate the coupling mechanism between tailwater vortex and cavitation bubbles (CB) during the operation of a low-head pump-as-turbine (PAT), the method of combining experiment and numerical simulation is used to quantify the… read more here.

Keywords: cavitation; coupling mechanism; vortex; vortex dynamics ... See more keywords

Vortex Dynamics in Binary Ultracold Rydberg Atomic System

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Published in 2025 at "Chinese Physics Letters"

DOI: 10.1088/0256-307x/42/8/080002

Abstract: The vortex dynamics after the initial ring dark solitons in two-component ultracold Rydberg atomic systems have been investigated. The two parameters characterizing the Rydberg long-range interaction—namely, the Rydberg strength and the blockade radius—along with the… read more here.

Keywords: vortex dynamics; ultracold rydberg; rydberg atomic; atomic system ... See more keywords