Abstract
Experimental observations of small-scale structures caused by flow instabilities at layers of high density gradient in the wake behind a cylinder in a fluid with a continuous salt concentration stratification are reported. In the density wake it is possible to discern a number of structures such as wedge-like structures or cusps; small-scale instabilities (breakers) in the zones of interaction of attached internal waves and the high-gradient wake envelope; small-scale instability of the density boundary layer with a complicated density gradient pattern superimposed on a smooth velocity profile, and small-scale wake structures behind attached vortices in the case of a closed (central) wake envelope.
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Translated from Izvestiya RossiiskoiAkademii Nauk, Mekhanika Zhidkosti i Gaza, No. 3, pp. 3–10, May–June, 1995.
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Voeikov, I.V., Prokhorov, V.E. & Chashechkin, Y.D. Micro-scale instability in a continuously stratified fluid. Fluid Dyn 30, 335–340 (1995). https://doi.org/10.1007/BF02282444
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DOI: https://doi.org/10.1007/BF02282444