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Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 2019, Volume 161, Book 2, Pages 165–180
DOI: https://doi.org/10.26907/2541-7746.2019.2.165-180
(Mi uzku1510)
 

This article is cited in 3 scientific papers (total in 3 papers)

Dependence of cavitation bubble impact onto a body on liquid pressure

A. A. Aganin, T. S. Guseva, L. A. Kosolapova, N. A. Khismatullina

Institute of Mechanics and Engineering, FRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, 420111 Russia
References:
Abstract: The effect produced by liquid pressure during the impact of a cavitation bubble on the surface of a body was numerically studied. The liquid under study was water; the material of the body was copper-nickel alloy; the bubble was initially spherical (radius $1$ mm), touched the body, and filled with vapor in the saturation state. The liquid pressure $p_L$ varied from $1$ to $7$ bar. The impact on the body resulted from the action of a cumulative jet arising on the surface of the bubble during its collapse. The main attention was paid to the short-term initial phase of the impact when the maximum pressure on the wall was of the order of the water hammer pressure $p_{wh}$, corresponding to a rigid wall. It was shown that the cumulative jet velocity and radius increase from $115$ to $317$ m/c and from $38$ to $43\,\mu$m, respectively, with increasing $p_L$. Throughout the $p_L$ range considered, the initial stage of the cumulative jet impact developed similarly to the known case of the spherical drop impact. The body surface pressure first reached the water hammer pressure level. Then the pressure on the body surface at the center of the impact domain decreased monotonically, whereas at the periphery it initially increased to about $2.5 p_{wh}$ and after that decreased. Initially, the deformations in the body in the impact center vicinity were elastic at $p_L = 1$ bar and plastic at $p_L = 4$ and $7$ bar. Then they became plastic at $p_L = 1$ bar. With increasing $p_L$, the plastic zone significantly increased, its geometry greatly changed. The jet impact resulted in a circular micropit appearing on the body surface. With increasing $p_L$, it became more pronounced.
Keywords: cavitation, bubble collapse near body, cumulative jet, liquid impact onto body, elastic-plastic body dynamics.
Funding agency Grant number
Russian Foundation for Basic Research 16-01-00433_а
The study was supported by the Russian Foundation for Basic Research (project no. 16-01-00433).
Received: 19.07.2018
Bibliographic databases:
Document Type: Article
UDC: 532.5.031:532.593:539.3
Language: Russian
Citation: A. A. Aganin, T. S. Guseva, L. A. Kosolapova, N. A. Khismatullina, “Dependence of cavitation bubble impact onto a body on liquid pressure”, Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 161, no. 2, Kazan University, Kazan, 2019, 165–180
Citation in format AMSBIB
\Bibitem{AgaGusKos19}
\by A.~A.~Aganin, T.~S.~Guseva, L.~A.~Kosolapova, N.~A.~Khismatullina
\paper Dependence of cavitation bubble impact onto a body on liquid pressure
\serial Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki
\yr 2019
\vol 161
\issue 2
\pages 165--180
\publ Kazan University
\publaddr Kazan
\mathnet{http://mi.mathnet.ru/uzku1510}
\crossref{https://doi.org/10.26907/2541-7746.2019.2.165-180}
\elib{https://elibrary.ru/item.asp?id=41296510}
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  • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki
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