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First-Principles Calculations of Shocked Fluid Helium in Partially Ionized Region

Published online by Cambridge University Press:  20 August 2015

Cong Wang ,
Xian-Tu He  and
Ping Zhang
Cong Wang*
Affiliation:
LCP, Institute of Applied Physics and Computational Mathematics, P.O. Box8009, Beijing 100088, China
Xian-Tu He*
Affiliation:
LCP, Institute of Applied Physics and Computational Mathematics, P.O. Box8009, Beijing 100088, China Center for Applied Physics and Technology, Peking University, Beijing 100871, China
Ping Zhang*
Affiliation:
LCP, Institute of Applied Physics and Computational Mathematics, P.O. Box8009, Beijing 100088, China Center for Applied Physics and Technology, Peking University, Beijing 100871, China
*
Email:wang_cong@iapcm.ac.cn
Email:xthe@iapcm.ac.cn
Corresponding author.Email:zhang_ping@iapcm.ac.cn
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Abstract

Quantum molecular dynamic simulations have been employed to study the equation of state (EOS) of fluid helium under shock compressions. The principal Hugoniot is determined from EOS, where corrections from atomic ionization are added onto the calculated data. Our simulation results indicate that principal Hugoniot shows good agreement with gas gun and laser driven experiments, and maximum compression ratio of 5.16 is reached at 106 GPa.

Keywords

81Q0582D1085A04Equation of statewarm dense matterab initio simulations
Type
Research Article
Information
Communications in Computational Physics , Volume 12 , Issue 4 , October 2012 , pp. 1121 - 1128
Copyright
Copyright © Global Science Press Limited 2012

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