Secondary instability in steady gravity waves

Secondary instability in steady gravity waves
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稳定重力波的二次不稳定性

DOI:
10.1002/qj.49709138720
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发表时间:
1963
影响因子:
8.9
通讯作者:
S. Wilson
S. Wilson
中科院分区:
地球科学3区
文献类型:
--
作者:
R. Scorer;S. Wilson

文献摘要

被引文献

相似文献

分层流在水平流动时可能是稳定的,但当流动弯曲时,在重力波中会产生Gortler型不稳定性。产生二次涡度(绕流线旋转)的方程可用于研究这一点,并且我们表明二维重力波中的弯曲流动在真实的情况下可能变得不稳定。因此,这是一个可能的机制,为产生的“晴空湍流”在山波。
A stratified stream may be stable when flowing horizontally and yet develop a Gortler type of instability in gravity waves when the flow is curved. The equation for the generation of secondary vorticity (rotation round the streamlines) may be used to study this, and we show that the curved flow in two-dimensional gravity waves could become unstable in real cases. This is, therefore, one possible mechanism for the generation of ‘clear-air turbulence’ in mountain waves.