Fluid dynamics and thermal physics of two-phase flows: Problems and achievements

Varaksin, A. Yu.

doi:10.1134/s0018151x13030073

Cited by 169 publications

(38 citation statements)

References 152 publications

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“…The analysis of the research results of the move ment processes of two phase gas-and vapor-liquid flows in channels and their streamline motion around surfaces of different physical nature, for example, [1][2][3][4][5][6], shows that, in recent years, solutions have been obtained for quite interesting and relevant problems, in particu lar, the formation of gas-droplet jets, gas-and vapor-liquid mixtures with predetermined thermogas dynamic parameters. The effects of a number of factors and processes, like dispersion, component composi tion, flow regimes, phase transformations, and others, on the motion characteristics of two phase flows are determined.…”

Section: Introductionmentioning

confidence: 99%

“…The effects of a number of factors and processes, like dispersion, component composi tion, flow regimes, phase transformations, and others, on the motion characteristics of two phase flows are determined. The appearance of such research results is often explained (see, for example, [5]) by the intensive development of experimental methods for high speed diagnostics of gas-and vapor-liquid flows, in partic ular, particle image velocimetry (PIV), particle track ing velocimetry (PTV), interferometric particle imag ing (IPI), planar laser induced fluorescence (PLIF), and others [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Evaporation of single droplets and dispersed liquid flow in motion through high-temperature combustion products

Кузнецов

Стрижак

2014

High Temp

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Experimental study of the evaporation of single droplets and droplets in a flow of dispersed liquid in their motion through high temperature combustion products of a typical fuel is performed. The evapora tion rates of droplets of different sizes are compared; the characteristics of vaporization in a flow of dispersed liquid are analyzed. The conditions under which the drops moving first in the flow significantly slow the evap oration of the following drops are found.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaporation of single droplets and dispersed liquid flow in motion through high-temperature combustion products

Кузнецов

Стрижак

2014

High Temp

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“…The model developed in this study for calculating pulsed gas droplet flows can evidently also be used (with minimum modifications) for numerical simula tion of fundamentally unsteady (pulsed) two phase concentrated vortices [33][34][35][36].…”

Section: Discussionmentioning

confidence: 99%

Flow structure and turbulent heat and mass transfer at the stagnation point of an impact impulse gas-droplet jet

Пахомов

Терехов

2014

High Temp

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Heat transfer in a impact impulse gas droplet jet was investigated numerically using the Reynolds stress transport model. It is shown that such a flow is characterized by both an increase and a decrease in the heat transfer, as compared to a steady impact gas droplet flow. It is also shown that, as the frequency of pulses increases, the heat transfer initially increases in comparison to a steady jet, while at higher frequencies, the jet is characterized by a decrease in the heat transfer. An increase in the Reynolds number causes a decrease in the heat transfer intensification, and the Nusselt number distribution for all frequencies approaches the single phase flow regime.

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“…Two phase flows that naturally include dispersed inclusions (particles, drops, and bubbles) are also investigated using the aforementioned methods of diagnostics [6,7].…”

Section: Introductionmentioning

confidence: 99%

About choice of particle parameters for visualization and diagnostics of free concentrated air vortices

2014

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The problem of the choice of parameters (density, size) of particle inertia for visualization and diagnostics of free vortices of various intensities (characteristic velocity, vortex funnel diameter) is considered. The dimensionless criterion (Stokes number) is used, which determines the peculiarities of solid particles behavior in concentrated vortex structures. An example of the choice of particle parameters for visualization of a laboratory simulated air vortex funnel and debris cloud is described.

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Fluid dynamics and thermal physics of two-phase flows: Problems and achievements

Cited by 169 publications

References 152 publications

Evaporation of single droplets and dispersed liquid flow in motion through high-temperature combustion products

Evaporation of single droplets and dispersed liquid flow in motion through high-temperature combustion products

Flow structure and turbulent heat and mass transfer at the stagnation point of an impact impulse gas-droplet jet

About choice of particle parameters for visualization and diagnostics of free concentrated air vortices

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