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Teplofizika vysokikh temperatur, 2008, Volume 46, Issue 2, Pages 257–261
(Mi tvt1046)
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This article is cited in 2 scientific papers (total in 2 papers)
Heat and Mass Transfer and Physical Gasdynamics
The effect of the flow-to-wall temperature ratio on strong condensation of gas
A. A. Abramov, A. V. Butkovskay Central Aerohydrodynamic Institute
Abstract:
The method of direct statistical simulation is used to investigate the effect of the flow-to-wall temperature ratio $T$ on the strong subsonic condensation of monatomic gas. It is demonstrated that the dependence of relative pressure at the boundary of the Knudsen layer on relative temperature at a fixed value of the Mach number $M$ has a minimum. In so doing, the marked supercooling of condensing gas ($T < 1$) causes an abrupt increase in relative pressure. At the same time, for a «moderately cold» wall ($1.5 < T < 10$), the dependence of relative pressure on relative temperature at a fixed value of $M$ is very weak. It is demonstrated that, in the case of supersonic condensation, the dependence of minimal possible relative pressure on $T$ at a fixed value of $M$ likewise has a minimum. The calculation results agree well with the results of calculations by the method of moments using the suggested approximation of the molecule distribution function.
Received: 19.09.2006
Citation:
A. A. Abramov, A. V. Butkovskay, “The effect of the flow-to-wall temperature ratio on strong condensation of gas”, TVT, 46:2 (2008), 257–261; High Temperature, 46:2 (2008), 229–233
Linking options:
https://www.mathnet.ru/eng/tvt1046 https://www.mathnet.ru/eng/tvt/v46/i2/p257
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Abstract page: | 124 | Full-text PDF : | 74 |
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