Dynamic Molecular Collision model for N 2 - He mixture

Takashi Tokumasu, Yoichiro Matsumoto, Kenjiro Kamijo, Mamoru Oike

研究成果: Conference contribution

抄録

Dynamic Molecular Collision (DMC) model is extended to calculate collisions of N2 and He. An intermolecular potential is obtained as the sum of the two potentials between each atom of a N2 molecule and He. Lennard-Jones (12-6) potential is used as the interatomic potential and potential parameters are determined by combination rule. N2-He collisions are simulated in many cases by Molecular Dynamics (MD) method in order to construct the collision model between N2 and He. A collision cross section is determined based on a diffusion coefficient and a probability density function of energy after collision is determined by the MD method. In the present paper, moreover, this model is applied to simulations of the free jet expansion of N2-He mixture by Direct Simulation Monte Carlo (DSMC) method and the flow field is analyzed. Especially the number density and energy distributions at the axis of a free jet are analyzed in detail.

本文言語English
ホスト出版物のタイトルRarefied Gas Dynamics
ホスト出版物のサブタイトル22nd International Symposium
編集者Timothy J. Bartel, Michael A. Gallis
出版社American Institute of Physics Inc.
ページ645-652
ページ数8
ISBN(電子版)0735400253
DOI
出版ステータスPublished - 2001 8月 30
イベント22nd International Symposium on Rarefied Gas Dynamics - Sydney, Australia
継続期間: 2000 7月 92000 7月 14

出版物シリーズ

名前AIP Conference Proceedings
585
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other22nd International Symposium on Rarefied Gas Dynamics
国/地域Australia
CitySydney
Period00/7/900/7/14

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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