TY - GEN
T1 - Radiation hydrodynamics with dimitri, ZEUS, and Athena
AU - Stone, James McLellan
PY - 2009
Y1 - 2009
N2 - Progress in the development and application of numerical algorithms for multidimensional radiation hydrodynamics is described. This includes a full-transport algorithm using operator splitting implemented in the ZEUS-2D code in the late 1980s, a three-dimensional flux-limited diffusion module using operator splitting implemented in the ZEUS code in the late 1990s, and most recently the development of a full-transport radiation hydrodynamic algorithm for higher-order Godunov methods, as implemented in the Athena code in the last few years. These algorithms have been developed primarily to study the dynamics of accretion disks around compact objects, and selected results from these applications are described. Adding radiation to Godunov methods without operator splitting is a significant challenge, and the techniques being developed for Athena are still being tested. However, they promise improved accuracy over current methods. This work would not have been possible without Dimitri Mihalas's inspiration and guidance during my PhD thesis, and I briefly recount some of the ways Dimitri has influenced my career.
AB - Progress in the development and application of numerical algorithms for multidimensional radiation hydrodynamics is described. This includes a full-transport algorithm using operator splitting implemented in the ZEUS-2D code in the late 1980s, a three-dimensional flux-limited diffusion module using operator splitting implemented in the ZEUS code in the late 1990s, and most recently the development of a full-transport radiation hydrodynamic algorithm for higher-order Godunov methods, as implemented in the Athena code in the last few years. These algorithms have been developed primarily to study the dynamics of accretion disks around compact objects, and selected results from these applications are described. Adding radiation to Godunov methods without operator splitting is a significant challenge, and the techniques being developed for Athena are still being tested. However, they promise improved accuracy over current methods. This work would not have been possible without Dimitri Mihalas's inspiration and guidance during my PhD thesis, and I briefly recount some of the ways Dimitri has influenced my career.
KW - Accretion disks
KW - Magnetohydrodynamics
KW - Methods:Numerical
KW - Radiation hydrodynamics
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U2 - 10.1063/1.3250062
DO - 10.1063/1.3250062
M3 - Conference contribution
AN - SCOPUS:70549095835
SN - 9780735407107
T3 - AIP Conference Proceedings
SP - 217
EP - 229
BT - Recent Directions in Astrophysical Quantitative Spectroscopy and Radiation Hydrodynamics - Proc. Int. Conf. Honor of Dimitri Mihalas for His Lifetime Sci. Contrib. Occasion of His 70th Birthday
PB - American Institute of Physics Inc.
T2 - International Conference in Honor of Dimitri Mihalas for His Lifetime Scientific Contributions on the Occasion of His 70th Birthday:Recent Directions in Astrophysical Quantitative Spectroscopy and Radiation Hydrodynamics
Y2 - 30 March 2009 through 3 April 2009
ER -