A singular finite element technique for calculating continuum damping of Alfvén eigenmodes
dc.contributor.author | Bowden, G. W. | |
dc.contributor.author | Hole, M. J. | |
dc.date.accessioned | 2015-04-15T03:32:11Z | |
dc.date.available | 2015-04-15T03:32:11Z | |
dc.date.issued | 2015-02-06 | |
dc.date.updated | 2015-12-08T10:47:50Z | |
dc.description.abstract | Damping due to continuum resonances can be calculated using dissipation-less ideal magnetohydrodynamics provided that the poles due to these resonances are properly treated. We describe a singular finite element technique for calculating the continuum damping of Alfvén waves. A Frobenius expansion is used to determine appropriate finite element basis functions on an inner region surrounding a pole due to the continuum resonance. The location of the pole due to the continuum resonance and mode frequency is calculated iteratively using a Galerkin method. This method is used to find the complex frequency and mode structure of a toroidicity-induced Alfvén eigenmode in a large aspect ratio circular tokamak and is shown to agree closely with a complex contour technique. | |
dc.identifier.issn | 1070-664X | en_AU |
dc.identifier.uri | http://hdl.handle.net/1885/13252 | |
dc.publisher | American Institute of Physics | |
dc.rights | http://www.sherpa.ac.uk/romeo/issn/1070-664X/..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 15/04/15) | |
dc.source | Physics of Plasmas | |
dc.title | A singular finite element technique for calculating continuum damping of Alfvén eigenmodes | |
dc.type | Journal article | |
dcterms.dateAccepted | 2015-01-26 | |
local.bibliographicCitation.issue | 2 | en_AU |
local.bibliographicCitation.lastpage | 8 | |
local.bibliographicCitation.startpage | 022116 | en_AU |
local.contributor.affiliation | Bowden, G. W., Research School of Physical Sciences and Engineering, Australian National University | en_AU |
local.contributor.affiliation | Hole, M. J., Research School of Physical Sciences and Engineering, Australian National University | en_AU |
local.contributor.authoremail | u5132877@anu.edu.au | en_AU |
local.contributor.authoruid | u5132877 | en_AU |
local.identifier.absfor | 020204 - Plasma Physics; Fusion Plasmas; Electrical Discharges | |
local.identifier.ariespublication | u4695161xPUB150 | |
local.identifier.citationvolume | 22 | en_AU |
local.identifier.doi | 10.1063/1.4907792 | en_AU |
local.identifier.scopusID | 2-s2.0-84923794297 | |
local.identifier.uidSubmittedBy | u1005913 | en_AU |
local.publisher.url | http://www.aip.org/ | en_AU |
local.type.status | Published Version | en_AU |
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