Volume 36 Issue 6
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LIU Qiang, LI Huichao. Improvement and Application of Lax-Friderichs Scheme in MHD Numerical Simulation[J]. Chinese Journal of Space Science, 2016, 36(6): 857-865. doi: 10.11728/cjss2016.06.857
Citation: LIU Qiang, LI Huichao. Improvement and Application of Lax-Friderichs Scheme in MHD Numerical Simulation[J]. Chinese Journal of Space Science, 2016, 36(6): 857-865. doi: 10.11728/cjss2016.06.857
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Improvement and Application of Lax-Friderichs Scheme in MHD Numerical Simulation

doi: 10.11728/cjss2016.06.857 cstr: 32142.14.cjss2016.06.857

  • 1. Physics and Electronic Information College, Institute of Space Physics, Luoyang Normal University, Luoyang 471022;

  • 2. State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190;

  • 3. University of Chinese Academy of Sciences, Beijing 100049

  • Received Date: 2015-10-19
  • Rev Recd Date: 2016-03-21
  • Publish Date: 2016-11-15
    Abstract
  • Magnetohydrodynamics (MHD) numerical simulation is an important tool for space physics research. In this paper, Lax-Friderchs scheme with TVD property is employed to solve GLM-MHD equations. The diffusion turning coefficient is introduced for scheme optimization. Simulation result of 2D rotor test and magnetic cloud current sheet interaction test demonstrates GLM-MHD method's divergence control capability. The simulation consumes less than half of the computational time comparing with simulation utilizing Poisson correction method. While numerical stability is not damaged, numerical diffusion is reduced by the diffusion tuning coefficient.

     

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