Global magneto-hydrodynamic simulations of differentially rotating accretion disk by astrophysical rotational plasma simulator

Mami Machida, Ryoji Matsumoto, Shigeki Miyaji, Kenji E. Nakamura, Hideaki Tonooka

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

We present numerical results of three-dimensional global magneto-hydrodynamic (MHD) simulations achieved on Astrophysical Rotating Plasma Simulator (ARPS) developed at Chiba University. We simulate the time evolution of differentially rotating disks by using a parallelized three-dimensional MHD code. Typical number of grid points is (Nr, Nφ, Nz) = (200, 64, 240) in a cylindrical coordinate system. We found that when the initial magnetic field is toroidal and relatively strong, the system approaches a quasi-steady state with β = Pgas/Pmag ∼ 5. When the disk is threaded by vertical magnetic fields, magnetically driven collimated jet emanates from the surface of the disk. Fully vector-parallelized global simulations with ARPS enable us to study non-local effects such as magnetic pinch, saturation of nonlinear growth of instability, and deformation of the global structure.

本文言語英語
ホスト出版物のタイトルHigh Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings
編集者Mateo Valero, Kazuki Joe, Masaru Kitsuregawa, Hidehiko Tanaka
出版社Springer Verlag
ページ328-335
ページ数8
ISBN(印刷版)9783540411284
DOI
出版ステータス出版済み - 1月 1 2000
イベント3rd International Symposium on High Performance Computing, ISHPC 2000 - Tokyo, 日本
継続期間: 10月 16 200010月 18 2000

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
1940
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

その他

その他3rd International Symposium on High Performance Computing, ISHPC 2000
国/地域日本
CityTokyo
Period10/16/0010/18/00

!!!All Science Journal Classification (ASJC) codes

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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