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.

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.
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.