Source:http://linkedlifedata.com/resource/pubmed/id/18232993
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
2008-1-31
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pubmed:abstractText |
A variational symplectic integrator for the guiding-center motion of charged particles in general magnetic fields is developed for long-time simulation studies of magnetized plasmas. Instead of discretizing the differential equations of the guiding-center motion, the action of the guiding-center motion is discretized and minimized to obtain the iteration rules for advancing the dynamics. The variational symplectic integrator conserves exactly a discrete Lagrangian symplectic structure, and has better numerical properties over long integration time, compared with standard integrators, such as the standard and variable time-step fourth order Runge-Kutta methods.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0031-9007
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
25
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pubmed:volume |
100
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
035006
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pubmed:year |
2008
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pubmed:articleTitle |
Variational symplectic integrator for long-time simulations of the guiding-center motion of charged particles in general magnetic fields.
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pubmed:affiliation |
Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543, USA.
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pubmed:publicationType |
Journal Article
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