scholarly journals Focused sound from three-dimensional sound propagation effects over a submarine canyon

2011 ◽  
Vol 129 (6) ◽  
pp. EL260-EL266 ◽  
Author(s):  
Linus Y. S. Chiu ◽  
Ying-Tsong Lin ◽  
Chi-Fang Chen ◽  
Timothy F. Duda ◽  
Brian Calder
Keyword(s):  
Sound Propagation ◽  
Three Dimensional ◽  
Submarine Canyon ◽  
Propagation Effects

Energetics of Barotropic and Baroclinic Tides in the Monterey Bay Area

2012 ◽  
Vol 42 (2) ◽  
pp. 272-290 ◽  
Author(s):  
Dujuan Kang ◽  
Oliver Fringer
Keyword(s):  
Energy Flux ◽  
Three Dimensional ◽  
Internal Tide ◽  
Submarine Canyon ◽  
Tidal Energy ◽  
Energy Partitioning ◽  
Navier Stokes ◽  
Monterey Bay ◽  
Topographic Features ◽  
Bay Area

Abstract A detailed energy analysis of the barotropic and baroclinic M2 tides in the Monterey Bay area is performed. The authors first derive a theoretical framework for analyzing internal tide energetics based on the complete form of the barotropic and baroclinic energy equations, which include the full nonlinear and nonhydrostatic energy flux contributions as well as an improved evaluation of the available potential energy. This approach is implemented in the Stanford Unstructured Nonhydrostatic Terrain-Following Adaptive Navier–Stokes Simulator (SUNTANS). Results from three-dimensional, high-resolution SUNTANS simulations are analyzed to estimate the tidal energy partitioning among generation, radiation, and dissipation. A 200 km × 230 km domain including all typical topographic features in this region is used to represent the Monterey Bay area. Of the 152-MW energy lost from the barotropic tide, approximately 133 MW (88%) is converted into baroclinic energy through internal tide generation, and 42% (56 MW) of this baroclinic energy radiates away into the open ocean. The tidal energy partitioning depends greatly on the topographic features. The Davidson Seamount is most efficient at baroclinic energy generation and radiation, whereas the Monterey Submarine Canyon acts as an energy sink. Energy flux contributions from nonlinear and nonhydrostatic effects are also examined. In the Monterey Bay area, the nonlinear and nonhydrostatic contributions are quite small. Moreover, the authors investigate the character of internal tide generation and find that in the Monterey Bay area the generated baroclinic tides are mainly linear and in the form of internal tidal beams. Comparison of the modeled tidal conversion to previous theoretical estimates shows that they are consistent with one another.

Three dimensional axisymmetric sound propagation through a duct with aerosol

2018 ◽  
Vol 434 ◽  
pp. 261-272
Author(s):  
Ersen Arslan ◽  
Mehmet Çalışkan ◽  
Yusuf Özyörük
Keyword(s):  
Sound Propagation ◽  
Three Dimensional

Three‐dimensional modal theory of sound propagation in a fluctuating ocean with spatial‐temporal inhomogeneities.

2010 ◽  
Vol 128 (4) ◽  
pp. 2395-2395
Author(s):  
Alexander G. Voronovich ◽  
Vladimir E. Ostashev ◽  
John A. Colosi
Keyword(s):  
Sound Propagation ◽  
Three Dimensional ◽  
Modal Theory

Three‐dimensional propagation effects near the Mid‐Atlantic Bight

1997 ◽  
Vol 102 (5) ◽  
pp. 3143-3143
Author(s):  
Kevin B. Smith ◽  
Ching‐Sang Chiu ◽  
James H. Miller ◽  
James F. Lynch ◽  
Glen G. Gawarkiewicz
Keyword(s):  
Three Dimensional ◽  
Propagation Effects

Three-dimensional parabolic equation model for low frequency sound propagation in irregular urban canyons

2015 ◽  
Vol 137 (1) ◽  
pp. 310-320 ◽  
Author(s):  
Jean-Baptiste Doc ◽  
Bertrand Lihoreau ◽  
Simon Félix ◽  
Cédric Faure ◽  
Guillaume Dubois
Keyword(s):  
Parabolic Equation ◽  
Sound Propagation ◽  
Three Dimensional ◽  
Low Frequency ◽  
Equation Model ◽  
Frequency Sound

scholarly journals Modeling of three-dimensional sound propagation through solitary internal waves

2019 ◽  
Vol 68 (20) ◽  
pp. 204302
Author(s):  
Ze-Zhong Zhang ◽  
Wen-Yu Luo ◽  
Zhe Pang ◽  
Yi-Qing Zhou
Keyword(s):  
Internal Waves ◽  
Sound Propagation ◽  
Three Dimensional ◽  
Solitary Internal Waves
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