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Formation of Zones with Maximum Supersonic Cavitation Intensity in Single-Component and Multicomponent Media

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Journal of Engineering Physics and Thermophysics Aims and scope

Experimental studies have been made on the formation of highly active cavitation zones in fluid media at high pressures (up to 6.5 MPa) and temperatures (up to 150°C) with the use of a high-power ultrasonic installation. It has been shown that attempts to increase the cavitation intensity in single-component and multicomponent media by increasing the power of the ultrasonic installation to above a certain limit lead to a strong degradation of the cavitation processes. This is due to the appearance of hydrodynamical flows generated by longitudinal vibrations of the installation radiator waveguide. Eliminating or weakening such flows makes it possible to increase markedly the efficiency of cavitation treatment by increasing the medium pressure (in the range of 0.5–1.5 MPa) and choosing the optimum ratio between the temperature of the medium and the power of the ultrasonic installation (specific acoustic power of the radiator). We recommend to use for the cavitation intensity index the acoustic activity of the cavitation zone (acoustic noise amplitude in the frequency range of 200 kHz–10 MHz), as well as its physical activity determined by the destruction rate of thin-layer indicators.

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Authors and Affiliations

  1. Federal State Unitary Enterprise “M. V. Keldysh Research Center”, 8 Onezhskaya Str., Moscow, 125438, Russia

    B. I. Bakhtin & A. S. Skorokhodov

  2. N. É. Bauman Moscow State Technical University, 5 2nd Baumanskaya Str., Moscow, 105005, Russia

    A. I. Ivashov & A. V. Kuznetsov

Authors
  1. B. I. Bakhtin
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  2. A. I. Ivashov
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  3. A. V. Kuznetsov
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  4. A. S. Skorokhodov
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Correspondence to B. I. Bakhtin.

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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 89, No. 3, pp. 662–669, May–June, 2016.

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Bakhtin, B.I., Ivashov, A.I., Kuznetsov, A.V. et al. Formation of Zones with Maximum Supersonic Cavitation Intensity in Single-Component and Multicomponent Media. J Eng Phys Thermophy 89, 671–677 (2016). https://doi.org/10.1007/s10891-016-1425-5

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  • DOI: https://doi.org/10.1007/s10891-016-1425-5

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