Identification of gravity waves in hydrodynamical simulations
Open Access
- 29 June 2004
- journal article
- research article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 421 (3) , 775-782
- https://doi.org/10.1051/0004-6361:20035606
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
All Related Versions
This publication has 16 references indexed in Scilit:
- Stochastic Excitation of Gravity Waves by Overshooting Convection in Solar-Type StarsAstrophysics and Space Science, 2003
- A search for solar $\vec{g}$ modes in the GOLF dataAstronomy & Astrophysics, 2002
- Penetration and Overshooting in Turbulent Compressible ConvectionThe Astrophysical Journal, 2002
- Angular Momentum Redistribution by Waves in the SunThe Astrophysical Journal, 1999
- Magnetic structures in a dynamo simulationJournal of Fluid Mechanics, 1996
- Penetration below a convective zoneThe Astrophysical Journal, 1994
- On the generation of sound by turbulent convection. I - A numerical experimentThe Astrophysical Journal, 1993
- Compact finite difference schemes with spectral-like resolutionJournal of Computational Physics, 1992
- Nonlinear compressible convection penetrating into stable layers and producing internal gravity wavesThe Astrophysical Journal, 1986
- The Non-radial Oscillations of Polytropic StarsMonthly Notices of the Royal Astronomical Society, 1941