Dynamics and Instabilities of Vortex Pairs
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[1] Aix-Marseille University
Aix-Marseille University
Arrondissement de Marseille, Francia
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[2] Cornell University
Cornell University
City of Ithaca, Estados Unidos
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- Localización: Annual review of fluid mechanics, ISSN 0066-4189, Nº. 48, 2016, págs. 507-541
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
This article reviews the characteristics and behavior of counter-rotating and corotating vortex pairs, which are seemingly simple flow configurations yet immensely rich in phenomena. Since the reviews in this journal by Widnall (1975) and Spalart (1998), who studied the fundamental structure and dynamics of vortices and airplane trailing vortices, respectively, there have been many analytical, computational, and experimental studies of vortex pair flows. We discuss two-dimensional dynamics, including the merging of same-sign vortices and the interaction with the mutually induced strain, as well as three-dimensional displacement and core instabilities resulting from this interaction. Flows subject to combined instabilities are also considered, in particular the impingement of opposite-sign vortices on a ground plane. We emphasize the physical mechanisms responsible for the flow phenomena and clearly present the key results that are useful to the reader for predicting the dynamics and instabilities of parallel vortices.
