Implementation of Nested Grid Scheme for Global Magnetohydrodynamic Simulations of Astrophysical Rotating Plasmas View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

2001-06-12

AUTHORS

Takuhito Kuwabara , Ryoji Matsumoto , Sigeki Miyaji , Kenji Nakamura

ABSTRACT

We have developed an astrophysical rotating plasma simulator by which we can simulate global dynamics of magnetized rotating plasmas in 2 and 3 dimensions. One of the major applications of this simulator is a differentially rotating disk around a black hole (accretion disk) which is believed to be the central ‘engine’ of active galactic nuclei(AGN) such as quasars. We incorporated nested-grid scheme in order to simulate spacial scale ranging from the observed 100 pc (∼ 1018 m) torus of AGN to the central region of the accretion disk (∼ 1013 m ). By the calculation of 3 CPU vector-parallelized code we get total CPU time of calculation about 1/2 that of non-parallelized code. More... »

PAGES

564-567

References to SciGraph publications

  • 1999. Cosmological Adaptive Mesh Refinement in NUMERICAL ASTROPHYSICS
  • Book

    TITLE

    High Performance Computing and Networking

    ISBN

    978-3-540-67553-2
    978-3-540-45492-2

    Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/3-540-45492-6_63

    DOI

    http://dx.doi.org/10.1007/3-540-45492-6_63

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1015779852


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