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

doi:10.1007/3-540-39999-2_31

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

Experimental Particle Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 (N_r, N_φ, N_z) = (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 = P_gas/P_mag ∼ 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 language	English
Title of host publication	High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings
Editors	Mateo Valero, Kazuki Joe, Masaru Kitsuregawa, Hidehiko Tanaka
Publisher	Springer Verlag
Pages	328-335
Number of pages	8
ISBN (Print)	9783540411284
DOIs	https://doi.org/10.1007/3-540-39999-2_31
Publication status	Published - Jan 1 2000
Event	3rd International Symposium on High Performance Computing, ISHPC 2000 - Tokyo, Japan Duration: Oct 16 2000 → Oct 18 2000

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	1940
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Other

Other	3rd International Symposium on High Performance Computing, ISHPC 2000
Country	Japan
City	Tokyo
Period	10/16/00 → 10/18/00

All Science Journal Classification (ASJC) codes

Theoretical Computer Science
Computer Science(all)

Access to Document

10.1007/3-540-39999-2_31

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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

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. / Mateo Valero; Kazuki Joe; Masaru Kitsuregawa; Hidehiko Tanaka. 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 proceeding › Conference 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 M Valero, K Joe, M Kitsuregawa & H Tanaka (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. https://doi.org/10.1007/3-540-39999-2_31

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 Valero M, Joe K, Kitsuregawa M, Tanaka H, 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)). https://doi.org/10.1007/3-540-39999-2_31

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 / Mateo Valero ; Kazuki Joe ; Masaru Kitsuregawa ; Hidehiko Tanaka. 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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AB - 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.

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