A Multidimensional Radiation Magnetohydrodynamics Code Based on Flux-Limited Diffusion and HLLD

	A Multidimensional Radiation Magnetohydrodynamics Code Based on Flux-Limited Diffusion and HLLD
	Yang, Xiaohong 1,2; Yuan, Feng1
刊名	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
	2012-08-25
卷号	64 期号:4 页码:69
关键词	magnetohydrodynamics: MHD methods: numerical radiative transfer
英文摘要	We present a multidimensional radiation magnetohydrodynamics (MHD) code based on the high-resolution shock capturing schemes (HRSC), the flux-limited diffusion (FLD) approximation, and the assumption of local thermodynamic equilibrium (LTE). The HRSC, employing a conservative algorithm that accurately ensures conservation of the total energy of MHD is implemented using a third-order Runge-Kutte scheme and the HLLD Riemann solver. In the FLD approximation, because the evolution equations of the radiation energy flux are neglected, this code is easily implemented, though the FLD approximation is less accurate when dealing with highly anisotropic radiation fields in an optically thin region. We carried out classical tests for the MHD and for the subcritical and supercritical radiating shocks. The results show that this code can achieve the necessary accuracy and efficiency to solve the radiation-dominated astrophysical processes with the FLD approximation.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	HYPERBOLIC CONSERVATION-LAWS ; 2 SPACE DIMENSIONS ; CONSTRAINED TRANSPORT METHOD ; DOMINATED ACCRETION DISKS ; GODUNOV-TYPE SCHEMES ; TANG VORTEX SYSTEM ; IDEAL MAGNETOHYDRODYNAMICS ; ASTROPHYSICAL FLOWS ; BLACK-HOLES ; HYDRODYNAMIC ALGORITHMS
收录类别	SCI
语种	英语
WOS记录号	WOS:000309296600006
公开日期	2015-01-27
内容类型	期刊论文
源URL	[http://119.78.226.72//handle/331011/15448]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xiaohong,Yuan, Feng. A Multidimensional Radiation Magnetohydrodynamics Code Based on Flux-Limited Diffusion and HLLD[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2012,64(4):69.
APA	Yang, Xiaohong,&Yuan, Feng.(2012).A Multidimensional Radiation Magnetohydrodynamics Code Based on Flux-Limited Diffusion and HLLD.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,64(4),69.
MLA	Yang, Xiaohong,et al."A Multidimensional Radiation Magnetohydrodynamics Code Based on Flux-Limited Diffusion and HLLD".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 64.4(2012):69.