Gluing Methods for Vortex Dynamics in Euler Flows
Sign Up to like & getrecommendations! 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
Vortex dynamics mechanisms of separated boundary layer in a highly loaded low pressure turbine cascade
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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.
Sign Up to like & getrecommendations! 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
Vortex dynamics, pinning, and angle-dependent motion on moiré patterns
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.024504
Abstract: We examine pinning and dynamics of Abrikosov vortices interacting with pinning centers placed in a moiré pattern for varied moiré lattice angles. We find a series of magic angles at which the critical current shows… read more here.
Keywords: vortex dynamics; dynamics pinning; moir patterns; angle dependent ... See more keywords
Giant vortex dynamics in confined bacterial turbulence.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.055103
Abstract: We report the numerical evidence of a new state of bacterial turbulence in confined domains. By means of extensive numerical simulations of the Toner-Tu-Swift-Hohenberg model for dense bacterial suspensions in circular geometry, we discover the… read more here.
Keywords: giant vortex; dynamics confined; vortex dynamics; bacterial turbulence ... See more keywords
Chaotic few-body vortex dynamics in rotating Bose-Einstein condensates
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review Fluids"
DOI: 10.1103/physrevfluids.4.054701
Abstract: We investigate a small vortex-lattice system of four co-rotating vortices in an atomic Bose--Einstein condensate and find that the vortex dynamics display chaotic behaviour after a system quench introduced by reversing the direction of circulation… read more here.
Keywords: bose einstein; body vortex; chaotic body; vortex dynamics ... See more keywords
Characterization of Vortex Dynamics in a Laminar Separation Bubble
Sign Up to like & getrecommendations! Published in 2017 at "AIAA Journal"
DOI: 10.2514/1.j055501
Abstract: The development of coherent structures within the laminar separation bubble that forms on a NACA 0018 airfoil at an angle of attack of 8 deg and a chord-based Reynolds number of 100,000 is investig... read more here.
Keywords: dynamics laminar; characterization vortex; vortex dynamics; separation bubble ... See more keywords
Vortex Dynamics Study and Flow Visualization on Aircraft Model with Different Canard Configurations
Sign Up to like & getrecommendations! Published in 2021 at "Fluids"
DOI: 10.3390/fluids6040144
Abstract: Canard configuration on fighter planes is essential for regulating flow and the occurrence of vortex interactions on the main wing, one of which is to delay stall. Stall delays are useful when the aircraft is… read more here.
Keywords: vortex dynamics; aircraft; model; canard configurations ... See more keywords