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Труды сотрудников Института теплофизики УрО РАН
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Труды сотрудников ЦНБ УрО РАН
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 Найдено в других БД:Каталог книг и продолжающихся изданий (11)Каталог препринтов УрО РАН (1975 г. - ) (1)Труды Института высокотемпературной электрохимии УрО РАН (36)Труды сотрудников Института органического синтеза УрО РАН (15)Труды сотрудников Института химии твердого тела УрО РАН (101)Расплавы (26)Публикации Черешнева В.А. (1)Публикации Чарушина В.Н. (2)
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1.
Инвентарный номер: нет.
   
   D 63

   
    Disintegration of flows of superheated liquid films and jets [Electronic resource] / A. N. Pavlenko, V. P. Koverda, A. V. Reshetnikov, A. S. Surtaev, A. N. Tsoi, N. A. Mazheiko, K. A. Busov, V. N. Skokov // Journal of Engineering Thermophysics. - Bibliogr. : p. 192-193 (65 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CYLINDRICAL CHANNEL -- EXPERIMENTAL INVESTIGATIONs -- BOILING INCIPIENCE
Аннотация: This paper represents results on investigating the dynamics of boiling and disintegration of superheated liquid films and jets. The first part deals with experimental study of boiling liquid outflow through short cylindrical and slit channels. Evolution of disintegration of a hot water jet flow is observed both at low and moderate superheating and at high and limit superheating, and also for vaporization mechanisms corresponding to these superheatings. Peculiarities of disintegration of jets through slit and cylindrical channels are noticed. Results on measuring the reactive thrust of the jet through a slit channel under different geometrical conditions behind the channel outlet are represented. The 1/f fluctuations in transient regimes of superheated liquid boiling and in transient regimes of behavior of the jet shape are found. The second part of this article represents results on experimental investigation of nonsteady heat transfer and dynamics of the development of crisis phenomena at boiling of a falling subcooled liquid film in the conditions of stepwise heat release. The experimental data were obtained using synchronized high-speed infrared thermography and video. It is shown that with growth and condensation of vapor bubbles, on the liquid film interface appear large-amplitude waves that lead to considerably increasing local intensity of heat transfer. New data on the boiling incipience temperature in a subcooled liquid film, depending on the heat flux density, are obtained. It is found that the development of boiling crisis is a result of appearance of local dry patches and their subsequent growth by the mechanism of longitudinal thermal conductivity in the heat transfer wall as the equilibrium heat flux density is exceeded

\\\\expert2\\NBO\\Journal of Engineering Thermophysics\\2013, V.22, N 3. P. 174-193.pdf
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2.
Инвентарный номер: нет.
   
   D 63

   
    Disintegration of flows of superheated liquid films and jets [Electronic resource] / A. N. Pavlenko, V. P. Koverda, A. V. Reshetnikov, A. S. Surtaev, A. N. Tsoi, N. A. Mazheiko, K. A. Busov, V. N. Skokov // Journal of Engineering Thermophysics. - Bibliogr. : p. 192-193 (65 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CYLINDRICAL CHANNEL -- EXPERIMENTAL INVESTIGATIONs -- BOILING INCIPIENCE
Аннотация: This paper represents results on investigating the dynamics of boiling and disintegration of superheated liquid films and jets. The first part deals with experimental study of boiling liquid outflow through short cylindrical and slit channels. Evolution of disintegration of a hot water jet flow is observed both at low and moderate superheating and at high and limit superheating, and also for vaporization mechanisms corresponding to these superheatings. Peculiarities of disintegration of jets through slit and cylindrical channels are noticed. Results on measuring the reactive thrust of the jet through a slit channel under different geometrical conditions behind the channel outlet are represented. The 1/f fluctuations in transient regimes of superheated liquid boiling and in transient regimes of behavior of the jet shape are found. The second part of this article represents results on experimental investigation of nonsteady heat transfer and dynamics of the development of crisis phenomena at boiling of a falling subcooled liquid film in the conditions of stepwise heat release. The experimental data were obtained using synchronized high-speed infrared thermography and video. It is shown that with growth and condensation of vapor bubbles, on the liquid film interface appear large-amplitude waves that lead to considerably increasing local intensity of heat transfer. New data on the boiling incipience temperature in a subcooled liquid film, depending on the heat flux density, are obtained. It is found that the development of boiling crisis is a result of appearance of local dry patches and their subsequent growth by the mechanism of longitudinal thermal conductivity in the heat transfer wall as the equilibrium heat flux density is exceeded

\\\\expert2\\NBO\\Journal of Engineering Thermophysics\\2013, V.22, N 3. P. 174-193.pdf
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3.
Инвентарный номер: нет.
   
   K 25

    Kaverin, A. M.
    Attainable superheating of the oxygen-nitrogen-helium solutions [Electronic resource] / A. M. Kaverin, V. N. Andbaeva, V. G. Baidakov // Thermophysics and Aeromtchanics. - 2015. - Vol. 22, № 1. - С. 85-94. - Bibliogr. : p. 94 (19 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ADDITIVE APPROXIMATION -- SOLUTIONS -- HOMOGENEOUS NUCLEATION
Аннотация: Method of measuring the lifetime of the superheated liquid was used to determine temperatures of the limit superheating of the solution of oxygen-nitrogen-helium. The method of calculating the properties of this solution (temperature of limit superheating, saturated vapor pressure, and density) based on the data on the properties of solutions of oxygen-helium and nitrogen-helium was proposed. The surface tension of the solution of oxygen-nitrogen-helium was determined in a special experimen

\\\\expert2\\nbo\\Thermophysics and Aeromechanics\\2015, V. 22, N 1. P. 85-94.pdf
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4.
Инвентарный номер: нет.
   
   K 25

    Kaverin, A. M.
    Attainable superheating of the oxygen-nitrogen-helium solutions [Electronic resource] / A. M. Kaverin, V. N. Andbaeva, V. G. Baidakov // Thermophysics and Aeromtchanics. - 2015. - Vol. 22, № 1. - С. 85-94. - Bibliogr. : p. 94 (19 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ADDITIVE APPROXIMATION -- SOLUTIONS -- HOMOGENEOUS NUCLEATION
Аннотация: Method of measuring the lifetime of the superheated liquid was used to determine temperatures of the limit superheating of the solution of oxygen-nitrogen-helium. The method of calculating the properties of this solution (temperature of limit superheating, saturated vapor pressure, and density) based on the data on the properties of solutions of oxygen-helium and nitrogen-helium was proposed. The surface tension of the solution of oxygen-nitrogen-helium was determined in a special experimen

\\\\expert2\\nbo\\Thermophysics and Aeromechanics\\2015, V. 22, N 1. P. 85-94.pdf
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5.
Инвентарный номер: нет.
   
   B 16

    Baidakov, V. G.
    Metastable Lennard-Jones fluids. II. Thermal conductivity / V. G. Baidakov, S. P. Protsenko // Journal of Chemical Physics. - 2014. - Vol.140, №21. - С. 214506. - Bibliogr. : p. 214506 (44 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MOLECULAR DYNAMICS -- LENNARD-JONES LIQUID
Аннотация: The method of equilibrium molecular dynamics with the use of the Green-Kubo formalism has been used to calculate the thermal conductivity λ in stable and metastable regions of a Lennard-Jones fluid. Calculations have been made in the range of reduced temperatures 0.4 ≤ T* = k BT/ε ≤ 2.0 and densities 0.01 ≤ ρ* = ρσ3 ≤ 1.2 on 15 isotherms for 234 states, 130 of which refer to metastable regions: superheated and supercooled liquids, supersaturated vapor. Equations have been built up which describe the dependence of the regular part of the thermal conductivity on temperature and density, and also on temperature and pressure. It has been found that in (p, T) variables in the region of a liquid-gas phase transition a family of lines of constant value of excess thermal conductivity Δλ = λ - λ0, where λ0 is the thermal conductivity of a dilute gas, has an envelope which coincides with the spinodal. Thus, at the approach to the spinodal of a superheated liquid and supersaturated vapor (∂Δλ /∂p)T → ∞, (∂Δλ/∂T) p → ∞.

\\\\expert2\\nbo\\Journal of Chemical Physics\\2014, v.140, p.214506.pdf
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6.
Инвентарный номер: нет.
   
   B 16

    Baidakov, V. G.
    Metastable Lennard-Jones fluids. II. Thermal conductivity / V. G. Baidakov, S. P. Protsenko // Journal of Chemical Physics. - 2014. - Vol.140, №21. - С. 214506. - Bibliogr. : p. 214506 (44 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MOLECULAR DYNAMICS -- LENNARD-JONES LIQUID
Аннотация: The method of equilibrium molecular dynamics with the use of the Green-Kubo formalism has been used to calculate the thermal conductivity λ in stable and metastable regions of a Lennard-Jones fluid. Calculations have been made in the range of reduced temperatures 0.4 ≤ T* = k BT/ε ≤ 2.0 and densities 0.01 ≤ ρ* = ρσ3 ≤ 1.2 on 15 isotherms for 234 states, 130 of which refer to metastable regions: superheated and supercooled liquids, supersaturated vapor. Equations have been built up which describe the dependence of the regular part of the thermal conductivity on temperature and density, and also on temperature and pressure. It has been found that in (p, T) variables in the region of a liquid-gas phase transition a family of lines of constant value of excess thermal conductivity Δλ = λ - λ0, where λ0 is the thermal conductivity of a dilute gas, has an envelope which coincides with the spinodal. Thus, at the approach to the spinodal of a superheated liquid and supersaturated vapor (∂Δλ /∂p)T → ∞, (∂Δλ/∂T) p → ∞.

\\\\expert2\\nbo\\Journal of Chemical Physics\\2014, v.140, p.214506.pdf
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7.
Инвентарный номер: нет.
   
   E 97

   
    Experimental determination of superheated liquid density by the optical fiber method [Electronic resource] / A. L Gurashkin, A. A. Starostin, A. A. Uimin, A. D. Yampol'skiy, G. V. Ermakov, P. V. Skripov // Journal of Engineering Thermophysics. - 2013. - Vol.22, №3. - P194-202. - Bibliogr. : p. 202 (21 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
OPTICAL FIBER METHOD -- SUPERHEATED LIQUID DENSITY -- LIQUID-VAPOR
Аннотация: An experimental approach to determination of the density of liquid superheated with respect to the liquid-vapor equilibrium temperature, including the range of high degrees of superheating, is developed. The approach is based on application of an optical fiber method combined with a pure bubble chamber. Performance of the method for investigation of the refractive index and density for superheated liquids as functions of temperature and pressure is illustrated in experiments with n-hexane as a reference substance for thermophysical measurements. The relative density measurements are performed with a resolution up to 10-4 at a characteristic time of 1 ms. For absolute measurements, the setup should be calibrated by the known data on the liquid density for the saturation line

\\\\expert2\\NBO\\Journal of Engineering Thermophysics\\2013, V.22, N 3. P. 194-202.pdf
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8.
Инвентарный номер: нет.
   
   S 81

   
    Statistical properties of fluctuation boiling centers on the wall of a silylated glass cell for n-pentane near the boundary of attainable superheat [Electronic resource] / S. A. Perminov, E. V. Lipnyagov, G. V. Ermakov, M. A. Parshakova // International Journal of Heat and Mass Transfer. - 2013. - Vol.57, №1. - P429-431. - Bibliogr. : p. 431 (11 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
BOILING-UP -- HETEROGENEOUS -- LIQUIDS
Аннотация: High-speed video has been first used to show visually the existence of reproducible fluctuation boiling centers on a solid wall of an experimental cell for liquids superheated to the attainable superheat boundary. The main statistical characteristics of fluctuation centers have been calculated with allowance for censoring. The nonstationarity of a fluctuation process leading to the appearance of a nucleus capable of spontaneous growth has been shown. The change in the density of distribution of probabilities of boiling-up on an ensemble of centers with an increase in their number has been demonstrated. With an increase in the number of centers the probability of observation of large lifetimes of a liquid in the state of superheating decreases rapidly

\\\\expert2\\NBO\\International Journal of Heat and Mass Transfer\\2013, v.57, p.429-431.pdf
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9.
Инвентарный номер: нет.
   
   R 96

    Rutin, S. B.
    Heat transfer in supercritical fluids under pulse heating regime [Electronic resource] / S. B. Rutin, P. V. Skripov // International Journal of Heat and Mass Transfer. - 2013. - Vol.57, № 1. - P126-130. - Bibliogr. : p. 130 (12 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CRITICAL POINTS -- HEAT FLUX DENSITY -- HEATING POWER
Аннотация: The peculiarities of the heat transfer in supercritical fluids under short characteristic times scale has been studied experimentally. The constant heating power mode for the technique of controlled pulse heating of a wire probe was used for isobaric penetrating into the region of supercritical temperatures. The pressure range was (1-6)p/p and the temperature range was (0.6-1.6), where subscript "c" corresponds to the critical point of a substance. The characteristic pulse length was 10 ms; the heat flux density through the probe surface was from 1 MW/m2 to 10 MW/m2. A sharp decrease in the heat transfer intensity for supercritical fluids with respect to that of subcritical liquids has been obtained. A high sensitivity of the heat transfer pattern to the reduced pressure values was revealed as well

\\\\expert2\\NBO\\International Journal of Heat and Mass Transfer\\2013, v.57, p.126-130.pdf
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10.
Инвентарный номер: нет.
   
   B 16

    Baidakov, V. G.
    Capillary constant and surface tension of methane-helium solution [Electronic resource] / V. G. Baidakov, K. A. Grishina // Fluid Phase Equilibria. - 2013. - Vol.354. - P245-249. - Bibliogr. : p. 249 (21 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
ADSORPTION -- CAPILLARY CONSTANT -- DIFFERENTIAL CAPILLARY METHOD
Аннотация: The differential capillary method has been used to measure the capillary constant a2 of methane-helium solutions in the temperature range from 95 to 175K at pressures up to 4MPa. The surface tension γ and adsorption have been calculated from the obtained values of a2 employing, in addition, literature data on the density of the liquid and vapor phases of the respective solutions. Equations, which approximate the temperature, pressure and concentration dependences of a2 and γ, are proposed

\\\\expert2\\NBO\\Fluid Phase Equilibria\\2013, v.354, p. 245-249.pdf
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