Comparison of molecular models used in molecular dynamics simulation for tracer diffusion coefficients of naphthalene and dimethylnaphthalene isomers in supercritical carbon dioxide

Hidenori Higashi, Yoshio Iwai, Yasuhiko Arai

研究成果: Contribution to journalArticle査読

12 被引用数 (Scopus)

抄録

NVT ensemble molecular dynamics simulation was performed to calculate the tracer diffusion coefficients of naphthalene and dimethylnaphthalene isomers in supercritical carbon dioxide. Carbon dioxide was treated as a Lennard-Jones molecule (single site model) and solutes were treated as a rigid model of multi sites (united atom model) and a flexible model of all atoms (all atom model). The calculated results are compared with the experimental data and the calculated results by a single site model. The united atom model gives the best results to the experimental data among the three models. The calculated tracer diffusion coefficients by the all atom model show fairly good results without adjustable interaction parameters.

本文言語英語
ページ(範囲)51-55
ページ数5
ジャーナルFluid Phase Equilibria
234
1-2
DOI
出版ステータス出版済み - 8 8 2005

All Science Journal Classification (ASJC) codes

  • 化学工学(全般)
  • 物理学および天文学(全般)
  • 物理化学および理論化学

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