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
EditorsHidehiko Tanaka, Mateo Valero, Masaru Kitsuregawa, Kazuki Joe
PublisherSpringer Verlag
Pages328-335
Number of pages8
ISBN (Print)9783540411284
Publication statusPublished - Jan 1 2000
Externally publishedYes
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

Fingerprint

Accretion Disks
Rotating Disk
Rotating disks
Hydrodynamics
Simulator
Plasma
Simulators
Magnetic fields
Plasmas
Rotating
Magnetic Field
Nonlocal Effects
Three-dimensional
Cylindrical coordinates
Simulation
Saturation
Vertical
Grid
Numerical Results

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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 H. Tanaka, M. Valero, M. Kitsuregawa, & K. Joe (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.

Global magneto-hydrodynamic simulations of differentially rotating accretion disk by astrophysical rotational plasma simulator. / Machida, Mami; Matsumoto, Ryoji; Miyaji, Shigeki; Nakamura, Kenji E.; Tonooka, Hideaki.

High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings. ed. / Hidehiko Tanaka; Mateo Valero; Masaru Kitsuregawa; Kazuki Joe. Springer Verlag, 2000. p. 328-335 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 1940).

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

Machida, M, Matsumoto, R, Miyaji, S, Nakamura, KE & Tonooka, H 2000, Global magneto-hydrodynamic simulations of differentially rotating accretion disk by astrophysical rotational plasma simulator. in H Tanaka, M Valero, M Kitsuregawa & K Joe (eds), High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 1940, Springer Verlag, pp. 328-335, 3rd International Symposium on High Performance Computing, ISHPC 2000, Tokyo, Japan, 10/16/00.
Machida M, Matsumoto R, Miyaji S, Nakamura KE, Tonooka H. Global magneto-hydrodynamic simulations of differentially rotating accretion disk by astrophysical rotational plasma simulator. In Tanaka H, Valero M, Kitsuregawa M, Joe K, editors, High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings. Springer Verlag. 2000. p. 328-335. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
Machida, Mami ; Matsumoto, Ryoji ; Miyaji, Shigeki ; Nakamura, Kenji E. ; Tonooka, Hideaki. / Global magneto-hydrodynamic simulations of differentially rotating accretion disk by astrophysical rotational plasma simulator. High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings. editor / Hidehiko Tanaka ; Mateo Valero ; Masaru Kitsuregawa ; Kazuki Joe. Springer Verlag, 2000. pp. 328-335 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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