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Title: Numerical Analysis of Io's Atmospheric Behavior during Eclipse Based on a Model Boltzmann Equation
Authors: Kosuge, Shingo  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-1850-8171 (unconfirmed)
Aoki, Kazuo  KAKEN_id
Keywords: Io atmosphere
sublimation
eclipse
Boltzmann equation
rarefied gas dynamics
Issue Date: 27-Nov-2012
Publisher: AIP Publishing
Journal title: AIP Conference Proceedings: 28th International Symposium on Rarefied Gas Dynamics 2012
Volume: 1501
Start page: 1541
End page: 1548
Abstract: Unsteady behavior of Io's atmosphere caused by condensation and sublimation of SO[2] (the main atmospheric component) during and after eclipse is studied on the basis of kinetic theory. A deterministic computation for a model Boltzmann equation by means of a finite-difference method is performed to obtain the time evolution of the profiles of macroscopic quantities (density, flow velocity, and temperature) in high resolution. As a result, the transient wave motion and oscillatory behavior in the profiles are clarified. To concentrate on the dominant effect of the noncondensable gas (SO or O[2] ), other effects in the real atmosphere (e.g., plasma impingement, chemical reactions, etc.) are all omitted in the present analysis. Despite those simplifications, the overall behavior of the atmospheric column is similar to the more realistic result of the previous DSMC analysis in C. H. Moore et al., Icarus 201, 585 (2009).
Description: "28th International Symposium on Rarefied Gas Dynamics 2012"; Conference date: 9–13 July 2012; Location: Zaragoza, Spain
Rights: © 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
URI: http://hdl.handle.net/2433/187985
DOI(Published Version): 10.1063/1.4769722
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