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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationHigh Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings
EditorsMateo Valero, Kazuki Joe, Masaru Kitsuregawa, Hidehiko Tanaka
PublisherSpringer Verlag
Pages328-335
Number of pages8
ISBN (Print)9783540411284
DOIs
Publication statusPublished - Jan 1 2000
Event3rd International Symposium on High Performance Computing, ISHPC 2000 - Tokyo, Japan
Duration: Oct 16 2000Oct 18 2000

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume1940
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other3rd International Symposium on High Performance Computing, ISHPC 2000
CountryJapan
CityTokyo
Period10/16/0010/18/00

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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  • Cite this

    Machida, M., Matsumoto, R., Miyaji, S., Nakamura, K. E., & Tonooka, H. (2000). Global magneto-hydrodynamic simulations of differentially rotating accretion disk by astrophysical rotational plasma simulator. In M. Valero, K. Joe, M. Kitsuregawa, & H. Tanaka (Eds.), High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings (pp. 328-335). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 1940). Springer Verlag. https://doi.org/10.1007/3-540-39999-2_31