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 language | English |
|---|---|
| Title of host publication | High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings |
| Editors | Hidehiko Tanaka, Mateo Valero, Masaru Kitsuregawa, Kazuki Joe |
| Publisher | Springer Verlag |
| Pages | 328-335 |
| Number of pages | 8 |
| ISBN (Print) | 9783540411284 |
| Publication status | Published - Jan 1 2000 |
| Externally published | Yes |
| 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 |
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All Science Journal Classification (ASJC) codes
- Theoretical Computer Science
- Computer Science(all)
Cite this
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 proceeding › Conference contribution
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TY - GEN
T1 - Global magneto-hydrodynamic simulations of differentially rotating accretion disk by astrophysical rotational plasma simulator
AU - Machida, Mami
AU - Matsumoto, Ryoji
AU - Miyaji, Shigeki
AU - Nakamura, Kenji E.
AU - Tonooka, Hideaki
PY - 2000/1/1
Y1 - 2000/1/1
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=84944078687&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84944078687&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84944078687
SN - 9783540411284
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 328
EP - 335
BT - High Performance Computing - 3rd International Symposium, ISHPC 2000, Proceedings
A2 - Tanaka, Hidehiko
A2 - Valero, Mateo
A2 - Kitsuregawa, Masaru
A2 - Joe, Kazuki
PB - Springer Verlag
ER -