Abstract
The problem of the nonlinear stability of the radial collapse of a cylindrical shell, which is filled with a viscous incompressible fluid of uniform density, is studied. A number of assumptions are made: (1) vacuum is contained inside the shell; (2) it is surrounded by a layer of compressed polytropic gas, which serves as a product of instant detonation and exerts constant pressure on the outer surface of the shell; (3) vacuum is also behind the gas layer. The absolute instability of the radial collapse of the considered viscous cylindrical shell with respect to finite perturbations of the same symmetry type is established by the direct Lyapunov method. A Lyapunov function that satisfies all of the conditions of the first Lyapunov instability theorem, regardless of the specific mode of radial convergence, is constructed. This result fully confirms Trishin’s corresponding hypothesis and is a rigorous mathematical proof that the cumulation of kinetic energy of a viscous incompressible fluid of uniform density in the process of radial collapse of the studied cylindrical shell to its axis occurs exclusively at its impulse stage.
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REFERENCES
Zababakhin, E.I. and Zababakhin, I.E., Yavleniya neogranichennoi kumulyatsii (Unlimited Cumulation Phenomena), Moscow: Nauka, 1988.
Trishin, Yu.A., Fizika kumulyativnykh protsessov (Physics of Cumulative Processes), Novosibirsk: Inst. Gidrodin. im. M.A. Lavrent’eva, Sib. Otd. Ross. Akad. Nauk, 2005.
Yakushev, V.V., Utkin, A.V., Zhukov, A.N., Shakhrai, D.V., and Kim, V.V., High Temp., 2016, vol. 54, no. 2, p. 197.
Gubarev, Yu.G. and Sokolov, N.A., J. Eng. Phys. Thermophys., 2012, vol. 85, no. 2, p. 295.
Matyushkin, N.I. and Trishin Yu.A., Pis’ma Zh. Tekh. Fiz., 1977, vol. 3, p. 455.
Matyushkin, N.I. and Trishin, Yu.A., J. Appl. Mech. Tech. Phys., 1978, vol.19, no. 3, p. 362.
Lyapunov, A.M., Obshchaya zadacha ob ustoichivosti dvizheniya (The General Problem of the Stability of Motion). Moscow: Gos. Izd. Tech.-Teor. Lit., 1950.
Demidovich, B.P., Lektsii po matematicheskoi teorii ustoichivosti (Lectures on the Mathematical Theory of Stability), Moscow: Nauka, 1967.
Pobedrya, B.E., Lektsii po tenzornomu analizu (Lectures on Tensor Analysis), Moscow: Mosk. Gos. Univ., 1986.
Barbashin, E.A., Vvedenie v teoriyu ustoichivosti (Introduction to the Theory of Stability), Moscow: Nauka, 1967.
Zaitsev, V.F. and Polyanin, A.D., Spravochnik po obyknovennym differentsial’nym uravneniyam (Ordinary Differential Equations: A Handbook), Moscow: Fizmatlit, 2001.
Egorov, A.I., Obyknovennye differentsial’nye uravneniya s prilozheniyami (Ordinary Differential Equations with Applications), Moscow: Fizmatlit, 2007.
Fursova, D.A. and Gubarev, Yu.G., J. Phys.: Conf. Ser., 2019, vol. 1268, 012072.
ACKNOWLEDGMENTS
The authors are sincerely grateful to M. Godin–Boitard (National French University of Civil Aviation, Toulouse, France), who underwent a scientific internship under the supervision of Yu.G. Gubarev in June–September 2016, for participation and help in the study.
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Gubarev, Y.G., Fursova, D.A. The Stability of a Radial Convergence of a Cylindrical Shell Consisting of Viscous Incompressible Liquid. High Temp 58, 101–106 (2020). https://doi.org/10.1134/S0018151X20010095
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DOI: https://doi.org/10.1134/S0018151X20010095