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Two scenarios of the development of instability in intense swirling flow

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Abstract

The development of instability in a flow generated in a cylindrical cavity with a rotating endwall has been studied. Both possible scenarios of the development of instability, according to which the amplitude of velocity pulsation grows or decays with increasing swirl of the flow, have been observed for the first time. It is established that these processes depend on the appearance of secondary perturbations and on their relative frequency.

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Authors and Affiliations

  1. Kutateladze Institute of Thermophysics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    I. V. Naumov & V. L. Okulov

  2. Technical University of Denmark, DK-2800, Kongens Lyngby, Denmark

    J. N. Sorensen

Authors
  1. I. V. Naumov
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  2. V. L. Okulov
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  3. J. N. Sorensen
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Corresponding author

Correspondence to I. V. Naumov.

Additional information

Original Russian Text © I.V. Naumov, V.L. Okulov, J.N. Sorensen, 2007, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2007, Vol. 33, No. 18, pp. 32–39.

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Naumov, I.V., Okulov, V.L. & Sorensen, J.N. Two scenarios of the development of instability in intense swirling flow. Tech. Phys. Lett. 33, 775–778 (2007). https://doi.org/10.1134/S1063785007090180

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  • DOI: https://doi.org/10.1134/S1063785007090180

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