Summary
When submerged self-propelled body makes a maneuver, it imparts net momentum on the surrounding fluid. Using experimental observations and theoretical arguments we show that in a stratified fluid this leads to impulsive momentum wakes with large, long-lived coherent vortices in the late flows, which may be used as a signature for identification of submarine wakes in oceanic thermocline. We also show that in a strongly stratified fluid the drag on the body due to radiating internal waves may be significant and cause the wake to receive an extra momentum.
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Voropayev, S.I., Fernando, H.J.S. (2010). Wakes of Maneuvering Body in Stratified Fluids. In: Fitt, A., Norbury, J., Ockendon, H., Wilson, E. (eds) Progress in Industrial Mathematics at ECMI 2008. Mathematics in Industry(), vol 15. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-12110-4_38
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DOI: https://doi.org/10.1007/978-3-642-12110-4_38
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