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《Acta Geophysica Sinica》 1998-04
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EVOLUTION OF MHD INTERMEDIATE SHOCKS IN INTERPLANETARY SPACE

Hu XIAO-LONG Hu YOU-QIU (Department of Earth and Space Sciences,University of Science and Technology of China,Hefei 230026,China)  
Using the method of characteristics and shock fitting techniques,this paper simulates numerically the evolution of MHD (Magnetohydrodynamic) intermediate shocks in interplanetary space.The main conclusions are:(1) For an intermediate shock of type 2→4,the downstream tangential magnetic strength decreases by launching reverse slow compression waves downstream,whereas the upstream tangential magnetic strength increases by launching forward fast compression waves upstream.Therefore,the intermediate shock of type 2→4 evolves rapidly into a slow shock via a switch-off shock.Meanwhile the forward fast compression waves become a fast shock through nonlinear steepening process.(2) An intermediate shock of type 1→3 becomes a critical intermediate shock of type 1→3=4 by by launching forward slow rarefaction waves downstream,and immediately evolves into a shock system consisting of a forward fast shock and an intermediate shock of type 2→4. The intermediate shock of type 2→4 may propagate a larger heliocentric distance in the downstream side of the leading fast shock and be observed possibly by spacecraft near 1AU,but it eventually becomes a slow shock via a switch off shock. Key words Interplanetary dynamics,Magnetohydrodynamics,MHD shock, Intermediate shock,Numerical simulation
【Fund】: 国家自然科学基金项目(49474238)
【CateGory Index】: P354
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 HU YOU-QIU(University of Science and Technology of China, Hefei 230026);INTERPLANETARY INTERMEDIATE SHOCK[J];Chinese Journal of Geophysics;1991-04
2 HU YOU-QIU(University of Science and Technology of China Hefei 230026);EVOLUTION OF SLOW SHOCKS IN THE INTERPLANETARY SPACE[J];Chinese Journal of Geophysics;1994-03
3 HU Xiaolong;HU Youqiu (Department of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026);RECONSIDERATION OF MHD COPLANAR RIEMANN PROBLEM[J];CHINESE JOURNAL OF SPACE SCIENCE;1998-02
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Fei Zhenyong;Zhang Rende;(Center for Spase Science and Applied Reserch,Academra Sinica,Beijing,100080)(Department of Applied Mathematics and Physics,Beijing University of Chemical Technology, Beijing, 100029);The Dimensionless Form of Jumping Relations of Shock Wave for Anisotropic Hydromagnatic[J];JOURNAL OF BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY;1996-01
2 HU YOU-QIU Lou YING-MING(University of Science and Technology of China, Hefei 230026);SHOCK DISTRIBUTION IN THE UPSTREAM PARAMETRIC SPACE[J];Chinese Journal of Geophysics;1992-03
3 Hu YOU-QIU Lou YING-MING(University of Science and Technology of China, Hefei 230026);SHOCK LINKAGE IN THE UPSTREAM PARAMETRIC SPACE[J];Chinese Journal of Geophysics;1992-05
4 HU YIU -QIU (Department of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China );RECENT PROGRESS OF RESEARCH ON DYNAMICS OF SOLAR ATMOSPHERE AND INTERPLANETARY MEDIUM IN CHINA[J];Chinese Journal of Geophysics;1997-S1
5 XIANG CHANG QING\ WANG JING FANG\ DENG LING YUN XIONG DONG HUI (Department of Radio Science and Technology,College of Physics and Electronic Information Science,Wuhan University,Wuhan 430072,China) [;A COMPARISON OF DIFFERENT TYPES OF CORONAL MASS EJECTIONS[J];Chinese Journal of Geophysics;2000-06
6 HU YOUQIU LIU BAOJUN School of Earth and Space Science, University of Science and Technology of China, Hefei 230026, China;EVOLUTION OF INTERPLANETARY FLOW VELOCITY ENHANCEMENT DISTURBANCE[J];Chinese Journal of Geophysics;2003-03
7 HU YOU-QIU(University of Science and Technology of China Hefei 230026);EVOLUTION OF SLOW SHOCKS IN THE INTERPLANETARY SPACE[J];Chinese Journal of Geophysics;1994-03
8 LU Xianhe; SONG Liting; WEI Fengsi(Center for Space Science and Applied Research, The Chihese Acodeey of Sciences, Beijing 100080)(Departiment of Geophysics,Peking University);KINETIC ALFVEN SHOCK IN THE SOLAR WIND[J];CHINESE JOURNAL OF SPACE SCIENCE;1997-01
9 HU Xiaolong;HU Youqiu(Department of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026);INTERACTION BETWEEN MHD INTERMEDIATE SHOCKS[J];CHINESE JOURNAL OF SPACE SCIENCE;1998-03
10 XIANG Changqing WANG Jingfang WEI Fengsi HUANG Weimin XIONG Donghui (Center for Space Science and Applied Research, The Chineae Academg of Sciences, Beijing 10008O) (College of Electronic Information, Wuhan University);A NEW APPROACH TO DETERMINE LOCAL MRAMETERS OF INTERPLANETARY SIMULATED MHD SHOCKS[J];Chinese Journal of Space Science;2002-01
China Proceedings of conference Full-text Database 1 Hits
1 HU YOU-QIU (Department of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China);RECENT PROGRESS OF RESEARCH ON DYNAMICS OF SOLAR ATMOSPHERE AND INTERPLANETARY MEDIUM IN CHINA[A];[C];1997
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