Identification of gravity waves in hydrodynamical simulations

Preprint

16 April 2004

preprint
Published by arXiv in arXiv

Abstract

The excitation of internal gravity waves by an entropy bubble oscillating in an isothermal atmosphere is investigated using direct two-dimensional numerical simulations. The oscillation field is measured by a projection of the simulated velocity field onto the anelastic solutions of the linear eigenvalue problem for the perturbations. This facilitates a quantitative study of both the spectrum and the amplitudes of excited g-modes.

Keywords

HYDRODYNAMICAL SIMULATIONS
NUMERICAL SIMULATIONS
EIGENVALUE PROBLEM
IDENTIFICATION
GRAVITY WAVES
OSCILLATING
ATMOSPHERE
BUBBLE

All Related Versions

Version 1, 2003-11-04, ArXiv
Version 2, 2004-04-16, ArXiv
Version 3, 2004-08-10, ArXiv
Published version: Astronomy & Astrophysics, 421 (3), 775.

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