This article is cited in 1 paper

Heat and Mass Transfer and Physical Gasdynamics

Rapid evaporation and condensation of gas between two surfaces in the limit of low values of Knudsen number

A. V. Butkovskay

Central Aerohydrodynamic Institute

Abstract: One-dimensional plane, cylindrical, and spherical flows are considered, which arise in the case of rapid evaporation and condensation of gas. It is demonstrated that the main similarity parameter is $\overline{p}_{\text{ev}}$, i.e., the ratio of saturated vapor pressures at temperatures of “hot” and “cold” surfaces. The boundaries of the regions of limiting steady-state flows are investigated. The existence is demonstrated of the optimal value of the ratio of surface radii, at which the flow assumes the limiting mode at minimal value of $\overline{p}_{\text{ev}}$. The effect of polyatomicity of gas is considered.

UDC: 533.6.011.8

PACS: 64.70.Fx , 47.45Gx

Received: 16.03.2006

 English version: High Temperature, 2007, 45:4, 518–522

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