Results 271 to 280 of about 9,353 (305)

Parametric instability of internal gravity waves

Journal of Fluid Mechanics, 1975
A continuously stratified fluid, when subjected to a weak periodic horizontal acceleration, is shown to be susceptible to a form of parametric instability whose time dependence is described, in its simplest form, by the Mathieu equation. Such an acceleration could be imposed by a large-scale internal wave field. The growth rates of small-scale unstable
McEwan, A. D., Robinson, R. M.
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On the generation and evolution of internal gravity waves

Journal of Fluid Mechanics, 1984
In order to study the tidal generation and evolution of internal waves, both experimentally and theoretically, a two-dimensional two-layer model has been developed. The laboratory model consists of two immiscible fluid layers in a long wave tank, where time-dependent flow can be created by towing a suitably shaped obstacle with a sinusoidal motion. The
Lansing, Faiza S., Maxworthy, Tony
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On the reflection of internal gravity waves

Canadian Journal of Physics, 1970
Recently Einaudi and Hines discussed the fact that different wave parameters of acoustic–gravity waves may have different reflection heights. This raises the problem that there will be a range of heights over which one parameter is evanescent, whereas another parameter is in its normal propagation region.
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Sound and Internal Gravity Waves

2019
In the last three chapters, shallow and free surface water waves were treated, with gravity and capillarity as the driving forces. The subject of the present, brief chapter are two new wave types with (partially) different driving forces: first, sound waves due to perturbations of the thermal pressure, and, second, internal gravity waves due to ...
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Internal atmospheric gravity waves at ionospheric heights

Canadian Journal of Physics, 1960
Irregularities and irregular motions in the upper atmosphere have been detected and studied by a variety of techniques during recent years, but their proper interpretation has yet to be established. It is shown here that many or most of the observational data may be interpreted on the basis of a single physical mechanism, namely, internal atmospheric ...
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Resonat and Non-Resonant Wave-Wave Interactions for Internal Gravity Waves

1980
The purpose of this study is to investigate the means by which energy is transferred among internal gravity waves. The transfer of energy in weakly interacting flows is characterized by resonant interactions in which the interaction time scale is much greater than the component wave periods.
Carmen Cerasoli, I. Orlanski
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Internal gravity waves

2021
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Internal gravity waves from atmospheric jets and fronts

Reviews of Geophysics, 2014
Riwal Plougonven, Fuqing Zhang
exaly  

Instability and breakdown of internal gravity waves. I. Linear stability analysis

Physics of Fluids, 1996
James J Riley, Riley James J
exaly  

Internal Gravity Waves

2012
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