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.
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U2 - 10.1007/3-540-39999-2_31
DO - 10.1007/3-540-39999-2_31
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 - Valero, Mateo
A2 - Joe, Kazuki
A2 - Kitsuregawa, Masaru
A2 - Tanaka, Hidehiko
PB - Springer Verlag
T2 - 3rd International Symposium on High Performance Computing, ISHPC 2000
Y2 - 16 October 2000 through 18 October 2000
ER -