Long‐range acoustic propagation in four dimensions

1993 ◽  
Vol 94 (3) ◽  
pp. 1885-1885
Author(s):  
Gregory J. Orris ◽  
Michael D. Collins
Keyword(s):  
Long Range ◽  
Acoustic Propagation ◽  
Four Dimensions

scholarly journals Observations of low-frequency, long-range acoustic propagation in the Philippine Sea and comparisons with mode transport theory

2020 ◽  
Vol 147 (2) ◽  
pp. 877-897
Author(s):  
Tarun K. Chandrayadula ◽  
Sivaselvi Periyasamy ◽  
John A. Colosi ◽  
Peter F. Worcester ◽  
Matthew A. Dzieciuch ◽  
...  
Keyword(s):  
Long Range ◽  
Transport Theory ◽  
Low Frequency ◽  
Acoustic Propagation ◽  
Philippine Sea

The interference component of the acoustic field corresponding to the Long-Range Ocean Acoustic Propagation Experiment

2009 ◽  
Vol 125 (4) ◽  
pp. 1919-1929 ◽  
Author(s):  
Natalie S. Grigorieva ◽  
Gregory M. Fridman ◽  
James A. Mercer ◽  
Rex K. Andrew ◽  
Michael A. Wolfson ◽  
...  
Keyword(s):  
Long Range ◽  
Acoustic Field ◽  
Acoustic Propagation ◽  
Interference Component ◽  
Propagation Experiment

A Moving Zonal Method in the Time-Domain Simulation for Acoustic Propagation

2010 ◽  
Author(s):  
Z. Charlie Zheng ◽  
Guoyi Ke
Keyword(s):  
Long Range ◽  
Time Domain ◽  
Region Of Interest ◽  
Acoustic Propagation ◽  
Coordinate Frame ◽  
Computational Domain ◽  
Perfectly Matched Layers ◽  
Zonal Method ◽  
Moving Domain ◽  
The Time Domain

Conventional time-domain schemes have limited capability in modeling long-range acoustic propagation because of the vast computer resources needed to cover the entire region of interest with a computational domain. Many of the long-range acoustic propagation problems need to consider propagation distances of hundreds or thousands of meters. It is thus very difficult to maintain adequate grid resolution for such a large computational domain, even with the state-of-the-art capacity in computer memory and computing speed. In order to overcome this barrier, a moving zonal-domain approach is developed. This concept uses a moving computational domain that follows an acoustic wave. The size and interval of motion of the domain are problem dependent. In this paper, an Euler-type moving domain in a stationary coordinate frame is first tested. Size effects and boundary conditions for the moving domain are considered. The results are compared and verified with both analytical solutions and results from the non-zonal domain. Issues of using the moving zonal-domain with perfectly-matched layers for the free-space boundary are also discussed.

scholarly journals Deep seafloor arrivals: An unexplained set of arrivals in long-range ocean acoustic propagation

2009 ◽  
Vol 126 (2) ◽  
pp. 599-606 ◽  
Author(s):  
Ralph A. Stephen ◽  
S. Thompson Bolmer ◽  
Matthew A. Dzieciuch ◽  
Peter F. Worcester ◽  
Rex K. Andrew ◽  
...  
Keyword(s):  
Long Range ◽  
Acoustic Propagation
Sign in / Sign up

Export Citation Format

Share Document