Kelvin-Helmholtz instability


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Kelvin–Helmholtz instability

A hydrodynamic instability where waves are set up at a surface boundary between two flows.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

Kelvin-Helmholtz instability

[¦kel·vin ′helm‚hōls ‚in·stə′bil·əd·ē]
(fluid mechanics)
An instability that occurs at the interface between two fluid layers if their relative motion is sufficiently large, and eventually results in the disruption of the interface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Kelvin-Helmholtz instability," Astrophysical Journal, vol.
Frank, "The magnetohydrodynamic Kelvin-Helmholtz instability: A three-dimensional study of nonlinear evolution," The Astrophysical Journal, vol.
Terradas, "Onset of the Kelvin-Helmholtz instability in partially ionized magnetic flux tubes," Astronomy and Astrophysics, vol.
Farrugia, "Magnetic Kelvin-Helmholtz instability at the Sun," Astrophysical Journal Letters, vol.
Thompson, "SDO/AIA observation of Kelvin-Helmholtz instability in the solar corona," The Astrophysical Journal Letters, vol.
Hannah, "Kelvin-Helmholtz instability of the CME reconnection outflow layer in the low corona," The Astrophysical Journal, vol.
Veronig, "The Kelvin-Helmholtz instability at coronal mass ejection boundaries in the solar corona: Observations and 2.5D MHD simulations," Astrophysical Journal Letters, vol.
Foullon, "First magnetic seismology of the CME reconnection outflow layer in the low corona with 2.5-D MHD simulations of the Kelvin-Helmholtz instability," Geophysical Research Letters, vol.
Goossens, "Kelvin-Helmholtz instability in partially ionized compressible plasmas," The Astrophysical Journal, vol.
Molaverdikhani, "The possibility of Kelvin-Helmholtz instability in solar spicules," Astrophysics and Space Science, vol.
In the first test case [6], the Kelvin-Helmholtz instability was not observed because the density gradient was 100 times smaller.
The layer of hot gases produced in chemical reactions results in the onset of the Kelvin-Helmholtz instability. Hence, the CFD simulations of the flame of coaxial injectors require the use of scale-resolved turbulence models.