Differential rotation and angular momentum

Gert Botha, E. A. Evangelidis

Research output: Chapter in Book/Report/Conference proceedingChapter

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Abstract

Differential rotation not only occurs in astrophysical plasmas like accretion disks, it is also measured in laboratory plasmas as manifested in the toroidal rotation of tokamak plasmas. A re-examination of the Lagrangian of the system shows that the inclusion of the angular momentum’s radial variation in the derivation of the equations of motion produces a force term that couples the angular velocity gradient with the angular momentum. This force term is a property of the angular velocity field, so that the results are valid wherever differential rotation is present.
Original languageEnglish
Title of host publicationProceedings of the International Astronomical Union
EditorsF. Kupka, I. W. Roxburgh, K. L. Chan
Place of PublicationCambridge, UK
PublisherCambridge University Press
Pages451-453
Number of pages3
Volume2
ISBN (Print)9780521863490
DOIs
Publication statusPublished - 2006

Publication series

NameProceedings of the International Astronomical Union Symposia and Colloquia
PublisherCambridge University Press
ISSN (Electronic)1743-9213

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