A viscous magnetohydrodynamic Kelvin–Helmholtz instability in the interface of two fluid layer: Part II. An application to the atmosphere of the Sun
Sign Up to like & getrecommendations! Published in 2019 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-019-3609-x
Abstract: The main aim of this submission is to investigate the effects of some parameters like wave number, shear velocity, magnetic field and temperature for the growth rate of the magnetized Kelvin-Helmholtz instability (KHI) with incessant… read more here.
Keywords: helmholtz instability; fluid layer; interface two; kelvin helmholtz ... See more keywords
Kelvin–Helmholtz billows above Richardson number $1/4$
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.725
Abstract: We study the dynamical system of a two-dimensional, forced, stratified mixing layer at finite Reynolds number $Re$ , and Prandtl number $Pr=1$ . We consider a hyperbolic tangent background velocity profile in the two cases… read more here.
Keywords: helmholtz billows; system; kelvin helmholtz; number ... See more keywords
Interplay between Kelvin–Helmholtz and lower-hybrid drift instabilities
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377819000758
Abstract: Boundary layers in space and astrophysical plasmas are the location of complex dynamics where different mechanisms coexist and compete, eventually leading to plasma mixing. In this work, we present fully kinetic particle-in-cell simulations of different… read more here.
Keywords: lower hybrid; hybrid drift; kelvin helmholtz; gradient ... See more keywords
Satellite Data‐Based 3‐D Simulation of Kelvin‐Helmholtz Instability and Induced Magnetic Reconnection at the Earth's Magnetopause
Sign Up to like & getrecommendations! Published in 2019 at "Geophysical Research Letters"
DOI: 10.1029/2019gl083282
Abstract: We present a 3‐D two‐fluid simulation using plasma parameters as measured by MMS on 8 September 2015 concerning the nonlinear development of the Kelvin‐Helmholtz instability at the Earth's magnetopause. We observe an extremely rich nonlinear… read more here.
Keywords: kelvin helmholtz; helmholtz instability; magnetic reconnection; reconnection ... See more keywords
Identifying Active Kelvin–Helmholtz Vortices on Saturn's Magnetopause Boundary
Sign Up to like & getrecommendations! Published in 2020 at "Geophysical Research Letters"
DOI: 10.1029/2019gl084206
Abstract: For ∼2,000 Cassini magnetopause encounters, we analyse plasma and magnetic fields. The boundary can be unstable to the Kelvin–Helmholtz instability (KHI), which can drive large‐scale flows identifiable in plasma measurements. Bulk flow reversed from the… read more here.
Keywords: active kelvin; identifying active; helmholtz vortices; kelvin helmholtz ... See more keywords
Effects of Fluctuating Magnetic Field on the Growth of the Kelvin‐Helmholtz Instability at the Earth's Magnetopause
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Geophysical Research"
DOI: 10.1029/2019ja027515
Abstract: At the Earth’s magnetopause, the Kelvin-Helmholtz (KH) instability, driven by the persistent velocity shear between the magnetosheath and the magnetosphere, has been frequently observed durin... read more here.
Keywords: helmholtz instability; earth magnetopause; kelvin helmholtz;
Gravity Waves Emitted From Kelvin‐Helmholtz Instabilities
Sign Up to like & getrecommendations! Published in 2023 at "Geophysical Research Letters"
DOI: 10.1029/2022gl102674
Abstract: Fritts, Wang, Lund, and Thorpe (2022, https://doi.org/10.1017/jfm.2021.1085) and Fritts, Wang, Thorpe, and Lund (2022, https://doi.org/10.1017/jfm.2021.1086) described a 3‐dimensional direct numerical simulation of interacting Kelvin‐Helmholtz instability (KHI) billows and resulting tube and knot (T&K) dynamics that… read more here.
Keywords: waves emitted; kelvin; kelvin helmholtz; gravity waves ... See more keywords
On the Importance of the Kelvin‐Helmholtz Instability on Magnetospheric and Solar Wind Dynamics During High Magnetic Shear
Sign Up to like & getrecommendations! Published in 2024 at "Geophysical Research Letters"
DOI: 10.1029/2024gl108605
Abstract: The secondary processes driven by the velocity shear driven Kelvin‐Helmholtz Instability (KHI) in the magnetized plasmas have been shown to be important in producing plasma transport and heating from the shocked solar wind into the… read more here.
Keywords: kelvin helmholtz; helmholtz instability; solar wind;
High‐Frequency Gravity Waves and Kelvin‐Helmholtz Billows in the Tropical UTLS, as Seen From Radar Observations of Vertical Wind
Sign Up to like & getrecommendations! Published in 2024 at "Geophysical Research Letters"
DOI: 10.1029/2024gl110366
Abstract: The present study analyzes novel observations of vertical wind (w) $(w)$ in the tropical upper troposphere‐lower stratosphere obtained from a radar wind profiler in Cochin, India. Between December 2022 and April 2023, 63 consecutive 4… read more here.
Keywords: kelvin helmholtz; vertical wind; radar; gravity waves ... See more keywords
Direct Kelvin‐Helmholtz Instability Detection at the Ionospheric E Region Electron Density
Sign Up to like & getrecommendations! Published in 2025 at "Geophysical Research Letters"
DOI: 10.1029/2025gl116932
Abstract: New high‐resolution measurements by Sanya incoherent scatter radar (ISR) employing a wide‐bandwidth chirp signal now enable spatiotemporal resolutions of 37.5 m and 50 s. We have applied these new capabilities for observations of Kelvin‐Helmholtz instability… read more here.
Keywords: helmholtz instability; instability detection; kelvin helmholtz; direct kelvin ... See more keywords
Physical effects of magnetic fields on the Kelvin-Helmholtz instability in a free shear layer
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Fluids"
DOI: 10.1063/1.5004473
Abstract: The Kelvin-Helmholtz instability of a parallel shear flow with a hyperbolic-tangent velocity profile has been simulated numerically at a high Reynolds number. The fluid is perfectly conducting with low viscosity, and the strength of the… read more here.
Keywords: kelvin helmholtz; helmholtz instability; field; effect ... See more keywords