DEVELOPMENT OF A TWO-DIMENSIONAL WAVEPACKET IN A GROWING BOUNDARY LAYER.

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作者：
Gaster, M.
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Proceedings of The Royal Society of London, Series A: Mathematical and Physical Sciences | 1982年 / 384卷 / 1787期
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631 Fluid Flow - 931 Classical Physics; Quantum Theory; Relativity;
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摘要：
The evolution of a two-dimensional wavepacket in a growing boundary layer is discussed in terms of linear stability theory. The wavepacket is represented by an integral of periodic wavetrains, each of which is defined as a series in terms of the inverse of the local displacement thickness Reynolds number to the one half power. Comparisons are made between the waveforms computed directly from the integral, a steepest-descent expansion of the integral, and a global expansion about the peak of the wavepacket.
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页码：317 / 332
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