Published 2005
| Version v1
Miscellaneous
Action conservation for Drift-waves
Creators
- 1. The Australian National Unversity, Canberra, ACT (Australia). Research School of Physical Sciences and Engineering, Department of Theoretical Phyics
Description
Full text: A powerful advantage of Lagrangian formalisms is the ability to generate conservation relations (Noether's Theorem). This has given motivation for finding a Lagrangian for the Hasegawa-Mima equation for drift waves in plasmas and Rossby waves in geophysics. An action conservation relation can naturally be derived from the Lagrangian. A nonlinear Wentzel-Kramer-Brillouin trial function is used in the derivation and the averaged Lagrangian is obtained using Whitham's variational approach. Variation to the phase variable in the averaged Lagrangian leads to an equation of action conservation for drift-waves. Copyright (2005) Australian Institute of Physics
Additional details
Identifiers
Publishing Information
- Imprint Title
- 16th National Congress of the Australian Institute of Physics. Congress Proceedings Handbook and Abstracts
- Imprint Pagination
- 268 p.
- Journal Page Range
- p. 231
Conference
- Title
- 16. National Congress of the Australian Institute of Physics. Physics for the Nation
- Dates
- 30 Jan - 4 Feb 2005
- Place
- Canberra, ACT (Australia)
INIS
- Country of Publication
- Australia
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37103556
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- EQUATIONS; GEOPHYSICS; LAGRANGIAN FUNCTION; NONLINEAR PROBLEMS; PLASMA; VARIATIONAL METHODS; VARIATIONS
- Descriptors DEC
- CALCULATION METHODS; FUNCTIONS; PHYSICS