Comparison of Measured and Calculated Normal‐Mode Amplitude Functions for Acoustic Waves in Shallow Water

1972 ◽  
Vol 52 (3B) ◽  
pp. 981-989 ◽  
Author(s):  
Raymond H. Ferris
Keyword(s):  
Shallow Water ◽  
Normal Mode ◽  
Acoustic Waves ◽  
Mode Amplitude

scholarly journals A shallow water analogue of asymmetric core-collapse, and neutron star kick/spin

2011 ◽  
Vol 7 (S279) ◽  
pp. 134-137
Author(s):  
Thierry Foglizzo ◽  
Frédéric Masset ◽  
Jérôme Guilet ◽  
Gilles Durand
Keyword(s):  
Neutron Star ◽  
Shallow Water ◽  
Acoustic Waves ◽  
Large Scale ◽  
Massive Stars ◽  
Core Collapse ◽  
Hydraulic Jumps ◽  
Core Collapse Supernova ◽  
Accretion Shock

AbstractMassive stars end their life with the gravitational collapse of their core and the formation of a neutron star. Their explosion as a supernova depends on the revival of a spherical accretion shock, located in the inner 200km and stalled during a few hundred milliseconds. Numerical simulations suggest that the large scale asymmetry of the neutrino-driven explosion is induced by a hydrodynamical instability named SASI. Its non radial character is able to influence the kick and the spin of the resulting neutron star. The SWASI experiment is a simple shallow water analog of SASI, where the role of acoustic waves and shocks is played by surface waves and hydraulic jumps. Distances in the experiment are scaled down by a factor one million, and time is slower by a factor one hundred. This experiment is designed to illustrate the asymmetric nature of core-collapse supernova.

scholarly journals A normal‐mode theory of shallow‐water reverberation

1993 ◽  
Vol 94 (3) ◽  
pp. 1785-1785 ◽  
Author(s):  
Renhe Zhang ◽  
Guoliang Jin ◽  
Dinghua Guan ◽  
Wenhua Li ◽  
Xinfang Qiu
Keyword(s):  
Shallow Water ◽  
Normal Mode ◽  
Mode Theory ◽  
Normal Mode Theory

A comparison of normal mode and parabolic equation range‐dependent propagation models as tools for acoustic communication in shallow water

2001 ◽  
Vol 109 (5) ◽  
pp. 2450-2451
Author(s):  
Natalia A. Sidorovskaia ◽  
Robert L. Field ◽  
Cheryl L. Sephus ◽  
George E. Ioup ◽  
Juliette W. Ioup
Keyword(s):  
Parabolic Equation ◽  
Shallow Water ◽  
Normal Mode ◽  
Acoustic Communication ◽  
Propagation Models
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