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A 3rd Order WENO GLM-MHD Scheme for Magnetic Reconnection

FENG Xueshang ZHOU Yufen HU Yanqi

FENG Xueshang, ZHOU Yufen, HU Yanqi. A 3rd Order WENO GLM-MHD Scheme for Magnetic Reconnection[J]. 空间科学学报, 2006, 26(1): 1-7. doi: 10.11728/cjss2006.01.001
引用本文: FENG Xueshang, ZHOU Yufen, HU Yanqi. A 3rd Order WENO GLM-MHD Scheme for Magnetic Reconnection[J]. 空间科学学报, 2006, 26(1): 1-7. doi: 10.11728/cjss2006.01.001

A 3rd Order WENO GLM-MHD Scheme for Magnetic Reconnection

doi: 10.11728/cjss2006.01.001
  • 摘要: A new numerical scheme of 3rd order Weighted Essentially Non-Oscillatory (WENO)type for 2.5D mixed GLM-MHD in Cartesian coordinates is proposed. The MHD equations are modified by combining the arguments as by Dellar and Dedner et al to couple the divergence constraint with the evolution equations using a Generalized Lagrange Multiplier (GLM). Moreover, the magnetohydrodynamic part of the GLM-MHD system is still in conservation form. Meanwhile, this method is very easy to add to an existing code since the underlying MHD solver does not have to be modified. To show the validation and capacity of its application to MHD problem modelling,interaction between a magnetosonic shock and a denser cloud and magnetic reconnection problems are used to verify this new MHD code. The numerical tests for 2D Orszag and Tang's MHD vortex,interaction between a magnetosonic shock and a denser cloud and magnetic reconnection problems show that the third order WENO MHD solvers are robust and yield reliable results by the new mixed GLM or the mixed EGLM correction here even if it can not be shown that how the divergence errors are transported as well as damped as done for one dimensional ideal MHD by Dedner et al.

     

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出版历程
  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2006-01-15

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