{"title":"二维磁流体力学中的电流片分布","authors":"D. Biskamp","doi":"10.1063/1.860612","DOIUrl":null,"url":null,"abstract":"Numerical simulations of current sheet formation in a two‐dimensional ideal incompressible magnetohydrodynamic system reveal that sheets evolve self‐similarly with cross‐sheet profiles close to j(ψ)∝exp(−2αψ). This current profile has previously been derived by several authors as the most probable state in a current‐carrying plasma. A critical review of the different theoretical approaches is given.","PeriodicalId":113346,"journal":{"name":"Physics of fluids. B, Plasma physics","volume":"45 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1993-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"16","resultStr":"{\"title\":\"Current sheet profiles in two-dimensional magnetohydrodynamics\",\"authors\":\"D. Biskamp\",\"doi\":\"10.1063/1.860612\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Numerical simulations of current sheet formation in a two‐dimensional ideal incompressible magnetohydrodynamic system reveal that sheets evolve self‐similarly with cross‐sheet profiles close to j(ψ)∝exp(−2αψ). This current profile has previously been derived by several authors as the most probable state in a current‐carrying plasma. A critical review of the different theoretical approaches is given.\",\"PeriodicalId\":113346,\"journal\":{\"name\":\"Physics of fluids. B, Plasma physics\",\"volume\":\"45 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1993-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"16\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of fluids. B, Plasma physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1063/1.860612\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of fluids. B, Plasma physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/1.860612","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Current sheet profiles in two-dimensional magnetohydrodynamics
Numerical simulations of current sheet formation in a two‐dimensional ideal incompressible magnetohydrodynamic system reveal that sheets evolve self‐similarly with cross‐sheet profiles close to j(ψ)∝exp(−2αψ). This current profile has previously been derived by several authors as the most probable state in a current‐carrying plasma. A critical review of the different theoretical approaches is given.
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