A Divergence-Free High-Order Spectral Difference Method with Constrained Transport for Ideal Compressible Magnetohydrodynamics
A Divergence-Free High-Order Spectral Difference Method with Constrained Transport for Ideal Compressible Magnetohydrodynamics
复制标题
理想可压缩磁流体动力学约束传输的无发散高阶谱差分法
DOI:
10.1080/10618562.2022.2042272
复制
发表时间:
2022
影响因子:
1.3
通讯作者:
Liang, Chunlei
中科院分区:
文献类型:
--
作者:
Chen, Kuangxu;Liang, Chunlei
When the high-order Spectral Difference (SD) method is used to discretize ideal magnetohydrodynamic (MHD) equations, it is challenging to satisfy the divergence-free constraintfor the magnetic field over long time integration. To ensure that the discreteequals to zero exactly and globally, the SD method is integrated with an unstaggered Constrained Transport approach (SDCT) by replacing the magnetic field with the curl of the magnetic potential at every time step. The SDCT method stores the variables for the hydrodynamics and the magnetic field at the same set of solution points, which avoids designing 2D Riemann solvers and preserves the compactness of the stencil for spatial discretization. Moreover, the additional computational cost is less than 1/8 of that without the constrained transport. Meanwhile, the SDCT method is found to have excellent convergence in test cases with and without shocks.
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DOI:
10.3847/0004-637x/830/1/45
发表时间:
2016
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Junfeng Wang;M. Miesch;C. Liang
通讯作者:
C. Liang
DOI:
--
发表时间:
2020
期刊:
International journal of computational fluid dynamics (Print)
影响因子:
--
作者:
Xiaoliang Zhang;C. Liang
通讯作者:
C. Liang
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
B. Zimmerman;Z. Wang;M. Visbal
通讯作者:
M. Visbal
影响因子:
4.1
作者:
Junfeng Wang;C. Liang;M. Miesch
通讯作者:
M. Miesch