On the temperature distribution in liquid-vapor phase change between plane liquid surfaces

Shankar, PN and Deshpande, MD (1990) On the temperature distribution in liquid-vapor phase change between plane liquid surfaces. Physics of Fluids, 2 (6). pp. 1030-1038.

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Abstract

The problem of temperature distribution in liquid-vapor phase change between plane liquid surfaces is considered both analytically and experimentally. Classical kinetic theory calculations indicate that, for a monatomic vapor, large temperature jumps exist at the interfaces, large enough possibly to cause the temperature distribution to be anomalous. A continuum analysis, with special consideration of the Knudsen layers, clearly establishes the adverse roles played by polyatomic molecules and the presence of a contaminant gas. The need to work with monatomic vapors under low levels of contamination is clearly indicated. The temperature profiles obtained in mercury, over a wide range of temperatures, clearly show large temperature jumps at the interfaces, as large as almost 50 percent of the applied temperature difference. These results appear to be the first to confirm this important phenomenon.

Item Type: Article
Additional Information: Copyright for this article belongs to American Institute of Physics
Uncontrolled Keywords: Liquid-vapor;Kinetic theory calculations;Knudsen layers; Polyatomic molecules
Subjects: PHYSICS > Physics(General)
Depositing User: Users 90 not found.
Date Deposited: 13 Oct 2006
Last Modified: 24 May 2010 04:21
URI: http://nal-ir.nal.res.in/id/eprint/2986

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