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The inveterate tinkerer

8. Kelvin–Helmholtz instability

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Abstract

In this series of articles, the authors discuss various phenomena in fluid dynamics, which may be investigated via tabletop experiments using low-cost or home-made instruments. The eighth article in this series explores and demonstrates Kelvin–Helmholtz instability

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Suggested Reading

  1. W Thompson (Lord Kelvin), The Influence of Wind on Waves in Water Supposed frictionless, Phil. Mag., Vol.42, p.368, 1871.

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  2. S Thorpe, Experiments on the Instability of Stratified Shear Flows: Miscible Fluids, J. Fluid Mech., Vol.46, p.299, 1971.

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  3. E Guyon, J Hulin, L Petit and C Mitescu, Physical Hydrodynamics, Oxford University Press, 2nd ed., 2015.

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  4. G Brown and A Roshko, Coherent structures were visualised at the interface of plane turbulent streams of two different gases behind a splitter plate using shadowgraphy in a highly-cited paper: On Density Effects and Large Structure in Turbulent Mixing Layers, J. Fluid Mech., Vol.64, p.775, 1974.

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  5. KH vortices at the edge of an axisymmetric free jet of high-velocity air from a nozzle into surrounding stagnant air may be seen in the video: youtube.com/watch?v=ELaZ2x42dkU

  6. KH and buckling instabilities in a free jet of viscoelastic fluid may be seen in the video: youtube.com/watch?v=XPlm1Wsz_tE

  7. Vortex shedding in the wake of a stationary cylinder in a vertically flowing soap film may be seen in the video: youtube.com/watch?v=Mtobb9Ss4OA

  8. View the the video ‘Flow Instabilities’ which is part of the series produced by the National Committee for Fluid Mechanics Films (United States) available online at: web.mit.edu/hml/ncfmf.html

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Authors and Affiliations

  1. Department of Mechanical Engineering, IIT Kharagpur, Kharagpur, West Bengal, 721 302, India

    Chirag Kalelkar

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  1. Chirag Kalelkar
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Correspondence to Chirag Kalelkar.

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Kalelkar, C. The inveterate tinkerer. Reson 22, 955–960 (2017). https://doi.org/10.1007/s12045-017-0555-1

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  • DOI: https://doi.org/10.1007/s12045-017-0555-1

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