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Pulsation dynamics during explosive boil-up of overheated water jets

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Abstract

We have studied dynamics of pulsation that develop during the explosion boil-up of overheated water jets emitted via a nozzle from a high-pressure vessel. At a temperature within 480–490 K, the water jet exhibits complete breakage accompanied by a sharp drop in the reactive force and the appearance of intense fluctuations. The power spectrum of these fluctuations has a divergent 1/f low-frequency component, which is indicative of the instability of flow and the possibility of large-scale low-frequency outbursts.

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Authors and Affiliations

  1. Institute of Thermal Physics, Ural Division, Russian Academy of Sciences, Yekaterinburg, 620219, Russia

    A. V. Reshetnikov, N. A. Mazheiko, V. N. Begletsov, V. N. Skokov & V. P. Koverda

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  1. A. V. Reshetnikov
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  2. N. A. Mazheiko
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  3. V. N. Begletsov
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  4. V. N. Skokov
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  5. V. P. Koverda
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Correspondence to A. V. Reshetnikov.

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Original Russian Text © A.V. Reshetnikov, N.A. Mazheiko, V.N. Begletsov, V.N. Skokov, V.P. Koverda, 2007, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2007, Vol. 33, No. 17, pp. 31–37.

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Reshetnikov, A.V., Mazheiko, N.A., Begletsov, V.N. et al. Pulsation dynamics during explosive boil-up of overheated water jets. Tech. Phys. Lett. 33, 732–734 (2007). https://doi.org/10.1134/S1063785007090052

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  • DOI: https://doi.org/10.1134/S1063785007090052

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