Computational Studies of Three-Dimensional Ocean Sound Fields in Areas of Complex Seafloor Topography and Active Ocean Dynamics
Name
Lermusiaux_Computational studies.pdf
Size
513.72 KB
Format
Adobe PDF
Checksum (MD5)
730a05616866159445a865f0c3b40d7e
Author(s)
Duda, Timothy F.
Lin, Ying-Tsong
Zhang, Weifeng Gordon
Cornuelle, Bruce D.
Lermusiaux, Pierre F. J.
Date Issued
April 2011
Journal
Proceedings of the 10th International Conference on Theoretical and Computational Acoustics
Citation
Duda, Timothy F., Ying-Tsong Lin, Weifeng Gordon Zhang, Bruce D. Cornuelle, and Pierre F. J. Lermusiaux. "Computational Studies of Three-Dimensional Ocean Sound Fields in Areas of Complex Seafloor Topography and Active Ocean Dynamics." 10th International Conference on Theoretical and Computational Acoustics (April 2011).
Version
Original manuscript
Abstract
Time-evolving three-dimensional (four-dimensional) numerical modeling of sound is performed for ocean environmental conditions calculated using regional ocean flow models. The flow models solve the appropriate nonlinear equations in bands of resolved scales and frequencies. Subgrid scale processes are parameterized, as are boundary processes. The ocean fields are interpolated onto acoustic model grids that are two orders of magnitude tighter than the flow model grids. The computations provide reliable estimates of the acoustic effects of the resolved ocean processes such as geostrophic currents, mixed-layer changes, and internal tides, but they do not include the acoustic implications of unresolved structures such as nonlinear internal waves, sharp boundary layers, and small-scale intrusions. Examples of complicated sound fields from resolved and unresolved features will be presented, and prospects for applying the methods will be discussed.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
http://www.gbv.de/dms/tib-ub-hannover/663982804.pdf
