Kelvin-Helmholtz instability of two finite-thickness fluid layers with continuous density and velocity profiles
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Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Indian Acad Sciences
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The effect of density and velocity gradients on the Kelvin-Helmholtz instability (KHI) of two superimposed finite-thickness fluid layers are analytically investigated. The linear normalized frequency and normalized growth rate are presented. Then, their behavior as a function of the density ratio of the light fluid to the heavy one (r) was analyzed and compared to the case of two semi-infinite fluid layers. The results showed that the values of normalized frequency of KHI for two finite-thickness fluid layers are less than their counterparts for two semi-infinite fluid layers. The behavior of normalized growth rate as a function of the velocity and density gradients capitulates to the effect of velocity gradient at the large values of (r).
Açıklama
Anahtar Kelimeler
Kelvin, Helmholtz, finite-thickness, density, velocity gradients
Kaynak
Journal of Astrophysics and Astronomy
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
39
Sayı
3
