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Teplofizika vysokikh temperatur, 2007, Volume 45, Issue 6, Pages 838–846
(Mi tvt1206)
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This article is cited in 19 scientific papers (total in 19 papers)
Thermophysical Properties of Materials
Nonequilibrium phase transitions in a jet of highly superheated water
A. V. Reshetnikov, N. A. Mazheiko, V. N. Skokov, V. P. Koverda Institute of Thermal Physics, Ural Branch, Russian Academy of Sciences, Ekaterinburg
Abstract:
Results are given of an experimental study into the dependence of integral and local characteristics of hot water flow on the value of superheating and on the kinetics of boiling in this water. Abrupt variations are revealed of parameters of a jet of boiling water such as the reactive force, the jet cone angle, and the rate of nucleation of vapor bubbles in the jet. Abrupt variations of modes of jet flow are treated as nonequilibrium phase transitions. This enables one to invoke model concepts of generation of $1/f$ fluctuations under conditions of nonequilibrium phase transitions in open systems. The inversely proportional dependence of power spectra of oscillation on frequency ($1/f$ fluctuations) in a jet of highly superheated water is found experimentally both under laboratory conditions and in a commercial-scale steam generator. Characteristic scales are discussed for reducing the experimental results for reactive force to dimensionless form.
Received: 18.07.2006
Citation:
A. V. Reshetnikov, N. A. Mazheiko, V. N. Skokov, V. P. Koverda, “Nonequilibrium phase transitions in a jet of highly superheated water”, TVT, 45:6 (2007), 838–846; High Temperature, 45:6 (2007), 763–770
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https://www.mathnet.ru/eng/tvt1206 https://www.mathnet.ru/eng/tvt/v45/i6/p838
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Abstract page: | 217 | Full-text PDF : | 111 |
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