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RAISHIN: A High-Resolution Three-Dimensional General Relativistic Magnetohydrodynamics CodeWe have developed a new three-dimensional general relativistic magnetohydrodynamic (GRMHD) code, RAISHIN, using a conservative, high resolution shock-capturing scheme. The numerical fluxes are calculated using the Harten, Lax, & van Leer (HLL) approximate Riemann solver scheme. The flux-interpolated, constrained transport scheme is used to maintain a divergence-free magnetic field. In order to examine the numerical accuracy and the numerical efficiency, the code uses four different reconstruction methods: piecewise linear methods with Minmod and MC slope-limiter function, convex essentially non-oscillatory (CENO) method, and piecewise parabolic method (PPM) using multistep TVD Runge-Kutta time advance methods with second and third-order time accuracy. We describe code performance on an extensive set of test problems in both special and general relativity. Our new GRMHD code has proven to be accurate in second order and has successfully passed with all tests performed, including highly relativistic and magnetized cases in both special and general relativity.
Document ID
20070001988
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Mizuno, Yosuke
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Nishikawa, Ken-Ichi
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Koide, Shinji
(Kumamoto Univ. Japan)
Hardee, Philip
(Alabama Univ. Tuscaloosa, AL, United States)
Fishman, Gerald J.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 24, 2013
Publication Date
August 21, 2006
Subject Category
Astrophysics
Distribution Limits
Public
Copyright
Other

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