VARIATIONAL PRINCIPLE FOR SLENDER FLUX TUBES .1. GENERAL EQUATIONS AND ADDED-MASS EFFECTS

Authors
ACHTERBERG A
Citation
A. Achterberg, VARIATIONAL PRINCIPLE FOR SLENDER FLUX TUBES .1. GENERAL EQUATIONS AND ADDED-MASS EFFECTS, Astronomy and astrophysics, 313(3), 1996, pp. 1008-1015
Citations number
28
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
313
Issue
3
Year of publication
1996
Pages
1008 - 1015
Database
ISI
SICI code
0004-6361(1996)313:3<1008:VPFSFT>2.0.ZU;2-F
Abstract
The equation of motion governing slender Aux tubes is derived using a variational principle. I consider the interaction between the tube and its surroundings due to buoyancy, added mass (anisotropic inertia) an d hydrodynamic drag. It is pointed out that the application of the sim ple added mass formula commonly used in the litterature is in fact lim ited to the case of an unstratified, non-rotating flow.