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21.
Skokov V. G. 《Power Technology and Engineering (formerly Hydrotechnical Construction)》1996,30(8):462-463
Power Technology and Engineering - 相似文献
22.
A. V. Reshetnikov V. P. Koverda V. N. Skokov A. I. Karpenko P. P. Govorov A. I. Bel’tyukov 《Atomic Energy》2005,98(2):97-102
The spectral characteristics of the water flow rate pulsations in the evaporation module of a steam generator with sodium heating in the BN-600 power-generating unit at nominal power are investigated. The results show that the power spectrum of the flow rate pulsations vary inversely as the frequency (flicker pulsations). The appearance of the high-energy low-frequency pulsations of the water flow rate is attributed to a critical heat transfer regime (nonequilibrium phase transition) which is realized in the evaporation module.__________Translated from Atomnaya Énergiya, Vol. 98, No. 2, pp. 105–110, February, 2005. 相似文献
23.
I. V. Skokov 《Journal of Engineering Physics and Thermophysics》1968,15(5):1061-1063
Shock layer separation in flows of rarefied gas past axisymmetric models is determined by interferometric methods. The form of the density jump is established.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 15, No. 5, pp. 843–846, November, 1968. 相似文献
24.
L. I. Malyshev V. M. Korolev V. G. Skokov 《Power Technology and Engineering (formerly Hydrotechnical Construction)》1995,29(12):690-693
1. | The use of synthetic resins (epoxy, polyurethane) for antiseepage, reinforcing, and repair works substantially broadens the possibility of the grouting method in the case of transient states of cracks in concrete structures and rock foundations. |
2. | Domestic development of the compositions and technologies of the grouting use of synthetic resins in construction are not inferior to foreign ones and at present are more economical compared to them. |
25.
Vibrational modes of combustion under conditions of combustible liquid boiling before the reaction front are investigated experimentally. Fluctuations are observed with the spectral density inversely proportional to frequency (1/fnoise). This phenomenon is associated with the intersection and interaction of nonequilibrium phase transitions. A mathematical model is suggested of the emergence of fluctuations with a 1/fspectrum under conditions of interaction between subcritical and supercritical phase transitions in a distributed system. 相似文献
26.
Using the principle of maximum entropy, we investigate the stability of stochastic processes with the 1/f power spectrum in the system of two nonlinear stochastic differential equations when modeling pulsations in crisis and transient heat-mass transfer regimes with intensive phase transitions. An analysis of the stability of the resultant process, which appears upon the interaction of the stochastic process and the 1/f spectrum of external deterministic impact, is performed. Under the action of harmonic force, stable resultant processes are divided into two types depending on the amplitude of the harmonic force. We have experimentally studied the influence of harmonic impact on the stability of pulsations with the 1/f spectrum upon the crisis of water boiling on a heated wire. The results are in qualitative agreement with theoretical estimations. 相似文献
27.
V. K. Golubev V. A. Medvedkin A. P. Pogorelov V. I. Skokov 《Combustion, Explosion, and Shock Waves》2000,36(3):390-394
The action of shock-wave loading on specimens of an OTK-90 explosive composition is studied. The limiting levels of loading
that correspond to the initial stage of explosive conversion of the specimens impacted by steel plates of different thickness
are determined. The limiting resistance of the specimens subjected to the gliding detonation of a TP-83 plastic explosive
through a polyurethane-foam layer and also to the gliding and normal detonations of a NIL-1 low-density explosive is examined.
It is shown that the boundaries of the transition from the purely mechanical failure of OTK-90 to a mechanochemical reaction
that were obtained by different methods of shock-wave loading agree well.
Translated fromFizika Goreniya i Vzryva, Vol. 36, No. 3, pp. 114–119, May–June 2000. 相似文献
28.
The results are given of an experimental investigation of the dynamics of vaporization under conditions of changing modes
of water boiling on a platinum wire heater and with local Joule heating of aqueous electrolytic solutions. It is found that
thermal fluctuations with spectral characteristics inversely proportional to frequency (flicker or 1/f noise) are generated under conditions of film boiling on a vertically oriented heater in a wide range of loads. In the region
of loss of stability of film boiling, frequency spectra vary in inverse proportion to the square of the frequency. In experiments
in Joule heating of aqueous electrolytes, the flicker noise is observed in the region of changing modes of vapor generation.
The experimental results are indicative of the self-organization of the critical behavior of the system in the case of nonequilibrium
phase transitions. 相似文献
29.
Experimental results are given of studies into intense heat pulsations with a spectral density inversely proportional to frequency
during transition to the local crisis of nitrogen boiling on the surface of current-carrying films of high-temperature superconductors.
A theoretical model is suggested of the rise of fluctuations with 1/f spectrum during interaction of intersecting phase transitions in concentrated systems. 相似文献
30.
A mathematical model is proposed that describes the appearance of fluctuations with a spectral density inversely proportional to the frequency as a result of the intersection of phase transitions in a spatially inhomogeneous system. The model is represented by a set of two nonlinear stochastic differential equations with mutually interacting order parameters. It is demonstrated that a random walk in the model potential field corresponding to the intersecting sub-and supercritical phase transitions may lead to the self-organization of a critical state and the appearance of fluctuations with a 1/f spectral density. 相似文献