Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...572..674r&link_type=abstract
The Astrophysical Journal, Volume 572, Issue 1, pp. 674-678.
Astronomy and Astrophysics
Astronomy
6
Convection, Hydrodynamics, Sun: Atmospheric Motions, Turbulence, Waves
Scientific paper
This paper considers the question of whether Eulerian or Lagrangian time correlations should be used to evaluate sound radiation by turbulent convection. Whereas previous analyses have either explicitly or implicitly used Lagrangian correlations, this paper argues in favor of Eulerian correlations. The physics of turbulent time correlations is briefly reviewed, and the implications of using Eulerian instead of Lagrangian correlations in sound-radiation calculations are discussed. The assumption made about time correlations alters the frequency distribution of the radiated sound; assuming Eulerian time correlations results in a more shallow acoustic power spectrum and consequently greater relative weighting of higher frequencies. The consequences of assuming Bolgiano scaling of buoyancy-generated turbulence are also discussed.
Rubinstein Robert
Zhou Ye
No associations
LandOfFree
Turbulent Time Correlations and Generation of Acoustic Waves by Stellar or Solar Turbulent Convection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Turbulent Time Correlations and Generation of Acoustic Waves by Stellar or Solar Turbulent Convection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbulent Time Correlations and Generation of Acoustic Waves by Stellar or Solar Turbulent Convection will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1893435