Stability of internal gravity wave modes: from triad resonance to broadband instability
Stability of internal gravity wave modes: from triad resonance to broadband instability
复制标题
内部重力波模式的稳定性:从三重共振到宽带不稳定性
DOI:
10.1017/jfm.2023.265
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发表时间:
2023
影响因子:
3.7
通讯作者:
Kakoutas, Christos
中科院分区:
文献类型:
--
作者:
Akylas, T.R.;Kakoutas, Christos
A theoretical study is made of the stability of propagating internal gravity wave modes along a horizontal stratified fluid layer bounded by rigid walls. The analysis is based on the Floquet eigenvalue problem for infinitesimal perturbations to a wave mode of small amplitude. The appropriate instability mechanism hinges on how the perturbation spatial scale relative to the basic-state wavelength, controlled by a parameter PSI is replaced by a novel, multi-mode resonance mechanism which has a stabilising effect that provides an inviscid short-scale cut-off to PSI. The theoretical predictions are supported by numerical results from solving the Floquet eigenvalue problem for a mode-1 basic state.
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影响因子:
--
作者:
T. Hibiya;M. Nagasawa;Y. Niwa
通讯作者:
T. Hibiya;M. Nagasawa;Y. Niwa
DOI:
10.1103/physrevfluids.2.074801
发表时间:
2017
期刊:
Journal of Geophysical Research: Oceans
影响因子:
--
作者:
H. Karimi;T. Akylas
通讯作者:
T. Akylas
影响因子:
3.7
作者:
R. Mied
通讯作者:
R. Mied
影响因子:
3.7
作者:
H. Karimi;T. Akylas
通讯作者:
T. Akylas
影响因子:
4.6
作者:
C. Yih
通讯作者:
C. Yih