Equation of State for Shock Compressed Xenon in the Ionization Regime: ab Initio Study

Quantum molecular dynamic (QMD) simulations have been applied to study the thermophysical properties of liquid xenon under dynamic compressions. The equation of state (EOS) obtained from QMD calculations are corrected according to Saha equation, and contributions from atomic ionization, which are of...

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Bibliographic Details
Published inCommunications in theoretical physics Vol. 58; no. 1; pp. 160 - 164
Main Authors Wang, Cong, Gu, Yun-Jun, Chen, Qi-Feng, He, Xian-Tu, Zhang, Ping
Format Journal Article
LanguageEnglish
Published 01.07.2012
Subjects
Accounting
Compressing
Dynamic tests
Equations of state
Ionization
Liquids
Mathematical analysis
Xenon
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Summary:Quantum molecular dynamic (QMD) simulations have been applied to study the thermophysical properties of liquid xenon under dynamic compressions. The equation of state (EOS) obtained from QMD calculations are corrected according to Saha equation, and contributions from atomic ionization, which are of predominance in determining the EOS at high temperature and pressure, are considered. For the pressures below 160 GPa, the necessity in accounting for the atomic ionization has been demonstrated by the Hugoniot curve, which shows excellent agreement with previous experimental measurements, and three levels of ionization have been proved to be sufficient at this stage.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0253-6102
DOI:10.1088/0253-6102/58/1/22