SLAU2 applied to two-dimensional, ideal magnetohydrodynamics simulations
SLAU2 applied to two-dimensional, ideal magnetohydrodynamics simulations
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SLAU2 应用于二维理想磁流体动力学模拟
DOI:
10.1016/j.compfluid.2020.104635
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发表时间:
2020
影响因子:
2.8
通讯作者:
Ryu Dongsu
中科院分区:
文献类型:
--
作者:
Kitamura Keiichi;Mamashita Tomohiro;Ryu Dongsu
SLAU2 (Simple Low-dissipation Advection-Upstream-splitting-method 2) numerical flux function, one of AUSM-type methods (3-wave solver), originally developed and widely used in gasdynamics, has been applied to two-dimensional magnetohydrodynamics (MHD) simulations. According to numerical tests for a wide range of flow and magnetic conditions, its reliability, efficiency, and accuracy have been demonstrated: i) Robustness of SLAU2 against shock-anomalies (e.g., carbuncle phenomena) has been confirmed in the MHD-extended version of our hypersonic flow test; ii) The computational cost has been reduced for approximately 3% compared with HLLD (Harten-Lax-van_Leer with Discontinuities), a more expensive, 5-wave solver; iii) Nevertheless, its solution qualities are almost equal to those of HLLD, as opposed to very diffused HLL solutions. For benchmark tests, detailed and important flow physics such as multidimensional shock/shock interactions have been successfully reproduced by SLAU2. We hope that SLAU2 will contribute to further progress of the astrophysics and other research fields.
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DOI:
10.3847/1538-4365/ab1a36
发表时间:
2019-03
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
作者:
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通讯作者:
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DOI:
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2010
期刊:
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影响因子:
1.6
作者:
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通讯作者:
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影响因子:
3.3
作者:
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通讯作者:
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DOI:
--
发表时间:
2007
期刊:
The Astrophysical Journal 667
影响因子:
--
作者:
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通讯作者:
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