The method of fundamental solutions for transmission and scattering of elastic waves

1992 ◽  
Vol 96 (2) ◽  
pp. 255-269 ◽  
Author(s):  
Prasanna S. Kondapalli ◽  
David J. Shippy ◽  
Graeme Fairweather
Keyword(s):  
Elastic Waves ◽  
Fundamental Solutions ◽  
Method Of Fundamental Solutions ◽  
Scattering Of Elastic Waves

Improved geometric modeling using the method of fundamental solutions

2021 ◽  
Vol 130 ◽  
pp. 49-57
Author(s):  
C.S. Chen ◽  
Lionel Amuzu ◽  
Kwesi Acheampong ◽  
Huiqing Zhu
Keyword(s):  
Geometric Modeling ◽  
Fundamental Solutions ◽  
Method Of Fundamental Solutions

scholarly journals Influence of fish backbone model geometrical features on the numerical target strength of swimbladdered fish

2020 ◽  
Author(s):  
I Pérez-Arjona ◽  
L Godinho ◽  
V Espinosa
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Sparus Aurata ◽  
Fundamental Solutions ◽  
Sea Bream ◽  
Method Of Fundamental Solutions ◽  
Target Strength ◽  
Simplified Models ◽  
Geometrical Features ◽  
Proper Estimation

Abstract The method of fundamental solutions has been applied to evaluate the influence of fish models geometrical features on the target strength (TS) directivity and TS frequency response of swimbladdered fish. Simplified models were considered for two fish species: gilt-head sea bream (Sparus aurata, Linnaeus 1758) and Atlantic salmon (Salmo salar, Linnaeus 1758), and different geometrical details of their morphology were studied, such as backbone presence, and its curvature or the inclusion of vertebrae modulation. Swimbladder shape and tilt, together with the inclusion of backbone (and its realistic curvature) for dorsal measurements were the most important features for proper estimation of mean TS. The estimation of mean TS is considered including the effect of fish tilt, the echosounder frequency, and the fish-to-transducer distance.

Scattering of elastic waves by a circular hole in the unsaturated soil

2020 ◽  
Vol 137 ◽  
pp. 106295
Author(s):  
Jian-Fei Lu ◽  
Meng-Qin Shi ◽  
Qing-Song Feng
Keyword(s):  
Circular Hole ◽  
Unsaturated Soil ◽  
Elastic Waves ◽  
Scattering Of Elastic Waves

Multiple scattering of elastic waves by a distribution of identical spheres

1990 ◽  
Vol 31 (11) ◽  
pp. 2619-2625 ◽  
Author(s):  
D. D. Phanord ◽  
N. E. Berger
Keyword(s):  
Multiple Scattering ◽  
Elastic Waves ◽  
Scattering Of Elastic Waves
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