Botha, Gert and Evangelidis, E. A. (2006) Differential rotation and angular momentum. In: Proceedings of the International Astronomical Union. Proceedings of the International Astronomical Union Symposia and Colloquia, 2 (S239). Cambridge University Press, Cambridge, UK, pp. 451-453. ISBN 9780521863490
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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.
| Item Type: | Book Section |
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| Subjects: | F300 Physics F500 Astronomy |
| Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
| Depositing User: | Dr Gert Botha |
| Date Deposited: | 14 Jan 2013 10:20 |
| Last Modified: | 17 Dec 2023 14:03 |
| URI: | https://nrl.northumbria.ac.uk/id/eprint/10993 |
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