Abstract
The ability to observe monochromatic instability waves in laboratory experiments is stipulated by controlled application of special disturbance sources, which excite small-amplitude oscillations at a single frequency with a predominant transverse wavenumber. In contrast, natural disturbances are mostly localized in space and/or time. In such cases, the wave packet concept discussed in this chapter can be used, which appears highly valuable for the general analysis of flow instability properties.
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Boiko, A.V., Dovgal, A.V., Grek, G.R., Kozlov, V.V. (2012). Linear wave packets of instability waves. In: Physics of Transitional Shear Flows. Fluid Mechanics and Its Applications, vol 98. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2498-3_8
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DOI: https://doi.org/10.1007/978-94-007-2498-3_8
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