Tokamak magnetic field lines described by simple maps
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
20/10/2012
20/10/2012
2008
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Resumo |
The magnetic field line structure in a tokamak can be obtained by direct numerical integration of the field line equations. However, this is a lengthy procedure and the analysis of the solution may be very time-consuming. Otherwise we can use simple two-dimensional, area-preserving maps, obtained either by approximations of the magnetic field line equations, or from dynamical considerations. These maps can be quickly iterated, furnishing solutions that mirror the ones obtained from direct numerical integration, and which are useful when long-term studies of field line behavior are necessary (e.g. in diffusion calculations). In this work we focus on a set of simple tokamak maps for which these advantages are specially pronounced. |
Identificador |
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, v.165, p.195-210, 2008 1951-6355 http://producao.usp.br/handle/BDPI/29069 10.1140/epjst/e2008-00863-y |
Idioma(s) |
eng |
Publicador |
EDP SCIENCES S A |
Relação |
European Physical Journal-special Topics |
Direitos |
restrictedAccess Copyright EDP SCIENCES S A |
Palavras-Chave | #INTERNAL TRANSPORT BARRIERS #STANDARD NONTWIST MAP #NULL DIVERTOR TOKAMAKS #MANIFOLD RECONNECTION #HAMILTONIAN-SYSTEMS #TOROIDAL GEOMETRY #REVERSED SHEAR #TWIST MAPS #DYNAMICS #DIFFUSION #Physics, Multidisciplinary |
Tipo |
article proceedings paper publishedVersion |