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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2006, Volume 47, Issue 4, Pages 88–97
(Mi pmtf2172)
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This article is cited in 2 scientific papers (total in 2 papers)
Effect of normal vibrations of a flat horizontal heater on the second boiling crisis
V. V. Konovalova, T. P. Lyubimovaa, D. V. Lyubimovb a Institute of Continuous Media Mechanics, Ural Division, Russian Academy of Sciences, Perm’, 614013
b Perm’ State University, Perm’, 614990
Abstract:
The effect of normal vibrations of a flat horizontal heater on the second boiling crisis is considered within the framework of the hydrodynamic theory of boiling crises. The critical heat flux is estimated by characteristics of growth of the most dangerous disturbances destroying the liquid-vapor interface. As the vibration intensity increases, the interface can be destroyed either owing to the Rayleigh–Taylor instability or by virtue of parametrically excited disturbances with wavelengths corresponding to resonance zones. In the domain of parameters where the parametric instability in the first resonance zone is the most dangerous factor, it is possible to significantly reduce the critical heat flux, as compared with the value corresponding to the case with no vibrations. With a further increase in vibration intensity, the critical heat flux increases as a whole. The nonmonotonic character of the critical heat flux as a function of vibration intensity allows an effective control of the critical heat flux whose value can be made higher or lower than the value in the case without vibrations.
Keywords:
second boiling crisis, vibrations, control of the boiling process.
Received: 14.02.2005 Accepted: 02.09.2005
Citation:
V. V. Konovalov, T. P. Lyubimova, D. V. Lyubimov, “Effect of normal vibrations of a flat horizontal heater on the second boiling crisis”, Prikl. Mekh. Tekh. Fiz., 47:4 (2006), 88–97; J. Appl. Mech. Tech. Phys., 47:4 (2006), 534–541
Linking options:
https://www.mathnet.ru/eng/pmtf2172 https://www.mathnet.ru/eng/pmtf/v47/i4/p88
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