Numerical modeling of three-dimensional underwater sound propagation under rough sea surfaces

2014 ◽  
Vol 135 (4) ◽  
pp. 2429-2429
Author(s):  
Ying-Tsong Lin
Keyword(s):  
Numerical Modeling ◽  
Sound Propagation ◽  
Three Dimensional ◽  
Underwater Sound ◽  
Rough Sea

scholarly journals THREE-DIMENSIONAL SOUND PROPAGATION MODELS USING THE PARABOLIC-EQUATION APPROXIMATION AND THE SPLIT-STEP FOURIER METHOD

2013 ◽  
Vol 21 (01) ◽  
pp. 1250018 ◽  
Author(s):  
YING-TSONG LIN ◽  
TIMOTHY F. DUDA ◽  
ARTHUR E. NEWHALL
Keyword(s):  
Parabolic Equation ◽  
Sound Propagation ◽  
Azimuthal Angle ◽  
Three Dimensional ◽  
Fourier Method ◽  
Radial Coordinate ◽  
Underwater Sound ◽  
Propagation Models ◽  
Cylindrical Grid ◽  
Grid Points

The split-step Fourier method is used in three-dimensional parabolic-equation (PE) models to compute underwater sound propagation in one direction (i.e. forward). The method is implemented in both Cartesian (x, y, z) and cylindrical (r, θ, z) coordinate systems, with forward defined as along x and radial coordinate r, respectively. The Cartesian model has uniform resolution throughout the domain, and has errors that increase with azimuthal angle from the x axis. The cylindrical model has consistent validity in each azimuthal direction, but a fixed cylindrical grid of radials cannot produce uniform resolution. Two different methods to achieve more uniform resolution in the cylindrical PE model are presented. One of the methods is to increase the grid points in azimuth, as a function of r, according to nonaliased sampling theory. The other is to make use of a fixed arc-length grid. In addition, a point-source starter is derived for the three-dimensional Cartesian PE model. Results from idealized seamount and slope calculations are shown to compare and verify the performance of the three methods.

scholarly journals A three-dimensional underwater sound propagation model for offshore wind farm noise prediction

2019 ◽  
Vol 145 (5) ◽  
pp. EL335-EL340 ◽  
Author(s):  
Ying-Tsong Lin ◽  
Arthur E. Newhall ◽  
James H. Miller ◽  
Gopu R. Potty ◽  
Kathleen J. Vigness-Raposa
Keyword(s):  
Wind Farm ◽  
Sound Propagation ◽  
Three Dimensional ◽  
Propagation Model ◽  
Offshore Wind ◽  
Noise Prediction ◽  
Underwater Sound ◽  
Offshore Wind Farm

EXPERIMENTAL MEASUREMENTS OF THREE-DIMENSIONAL UNDERWATER SOUND PROPAGATION

2001 ◽  
Vol 09 (01) ◽  
pp. 125-132
Author(s):  
STEWART A. L. GLEGG ◽  
JOSEPH M. RILEY ◽  
JOSEPH CICHOCK
Keyword(s):  
Sound Propagation ◽  
Three Dimensional ◽  
Experimental Measurements ◽  
Underwater Sound

Three-dimensional numerical modeling of sound propagation and scattering in the deep ocean with elastic (shear) bottoms

2012 ◽  
Vol 132 (3) ◽  
pp. 1973-1973
Author(s):  
Ilya A. Udovydchenkov ◽  
Ralph A. Stephen ◽  
Timothy F. Duda ◽  
Ying-Tsong Lin ◽  
Daniel Peter
Keyword(s):  
Numerical Modeling ◽  
Sound Propagation ◽  
Three Dimensional ◽  
Deep Ocean ◽  
Elastic Shear

A preliminary numerical model of three-dimensional underwater sound propagation in the Block Island Wind Farm area

2017 ◽  
Vol 141 (5) ◽  
pp. 3993-3993 ◽  
Author(s):  
Ying-Tsong Lin ◽  
Arthur Newhall ◽  
Gopu R. Potty ◽  
James H Miller
Keyword(s):  
Numerical Model ◽  
Wind Farm ◽  
Sound Propagation ◽  
Three Dimensional ◽  
Underwater Sound ◽  
Block Island
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