The proceedings of the JSME annual meeting
Online ISSN : 2433-1325
2004.2
Session ID : 1663
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Determination of Condensation Coefficient of Methanol Vapor by Shock Tube and Molecular Gas Dynamics
Tatsuki OTASatoru MIKAMISigeo FUJIKAWATakeru YANOMakoto ICHIJO
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Abstract
This paper is concerned with nonequilibrium condensation of methanol vapor on the plane end wall of a shock tube behind a reflected shock wave. The thickness of a liquid film formed on the endwall is measured by an optical method and it is compared with numerical simulations based on Gaussian-BGK Boltzmann equation. The condensation coefficient is determined in a wide range of thermodynamic nonequilibrium conditions of the vapor at the vapor-liquid interface. It is found that the condensation coefficient is decrease with the increase of the pressure ratio that is defined as the ratio of a vapor pressure to a saturated vapor pressure.
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© 2004 The Japan Society of Mechanical Engineers
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