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JOURNALS // Teplofizika vysokikh temperatur // Archive

TVT, 2008 Volume 46, Issue 3, Pages 421–426 (Mi tvt1078)

Heat and Mass Transfer and Physical Gasdynamics

The effect of condensation coefficient on the parameters of flow in problems on strong re-condensation

A. V. Butkovskay

Central Aerohydrodynamic Institute

Abstract: One-dimensional plane, cylindrical, and spherical flows are considered, which arise in the case of strong re-condensation of gas in the limit of small values of Knudsen number. The effect of the value of condensation coefficient $\alpha$ on the flow is considered. The effect of $\alpha$ on the boundaries of the regions of subsonic, mixed, and supersonic flows is investigated. It is demonstrated that the decrease in the ratio of «hot» to-«cold» surface radii causes a significant decrease in the effect of the difference of $\alpha$ from unity on the pattern of recondensation flow. The effect of polyatomicity of gas is considered.

UDC: 533.6.011.8

PACS: 68.03.Fg, 47.55.dr

Received: 07.12.2006


 English version:
High Temperature, 2008, 46:3, 381–385

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© Steklov Math. Inst. of RAS, 2026