通量修正法在日地空间MHD激波模拟中的应用

通量修正法在日地空间MHD激波模拟中的应用 FLUX CORRECTED TECHNIQUE USED IN INTERPLANETARY MHD SHOCK SIMULATION 张北辰 Zhang Beichen 1 first-author 王敬芳 Wang Jingfang 1 邓晓华 Deng Xiaohua 1 武汉大学电子信息学学院 武汉大学电子信息学学院 College of Electronic Information, Wuhan University College of Electronic Information, Wuhan University 回顾了应用于日地空间磁流体力学模拟的多种数值方法．将通量修正（ＦＣＴ）法应用于一维球对称超音速太阳风和激波对的模拟，所得结果在物理上与文献相比符合很好．但得到的激波间断面比文献更精确，间断面网格点数在２～３个之间．此方法可推广到在多维情形下进行扰动的数值模拟． Various kinds of method used in interplanetary magnetohydrodynamic（MHD） simulation are reviewed in this paper. The Flux Corrected Technique （FCT） is applied to simulate the one dimensional super sonic solar wind and shock pair disturbances. The simulated results match very well with that in literature. Moreover, the obtained shock wave discontinuities are more accurate. The discontinuity expands only 2～3 mesh points. This method can be extended in simulating multidimensional MHD disturbances in interplanetary space. 通量修正法 激波 数值模拟 flux corrected technique shock waves simulation P352.3 国家自然科学基金(61672102) 1998-01-01 2021-04-01 1