Interaction of a gas-droplet turbulent jet with a cocurrent high-velocity high-temperature gas flow |
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Authors: | D V Sadin A N Dobrolyubov V P Zyuzlikov K V Mogilenko B E Sinil’shchikov |
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Institution: | (1) Mozhaiskii Academy of Military and Space Engineering, St. Petersburg, 197082 |
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Abstract: | A mathematical model and a method for calculating a gas-droplet turbulent jet with allowance for velocity nonequilibrium and
virtual mass of the condensed phase during turbulent fluctuations and also heat and mass transfer within the three-temperature
scheme are developed. Methodical calculations are performed. The results of these calculations are in reasonable agreement
with available experimental data. The structure of the gas-droplet jet in a cocurrent high-velocity high-temperature gas flow
is studied by numerical methods. The ratio of intensities of heat and mass transfer between the phases and turbulent diffusion
transfers of substances is found to be different at the initial, transitional, and basic segments of the jet. This difference
is responsible for the nonmonotonic axial distribution of vapor density and the lines of the halved mass flow of the condensed
phase.
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 49, No. 3, pp. 85–94, May–June, 2008. |
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Keywords: | gas-droplet turbulent jet cocurrent flow numerical simulation |
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