scholarly journals Transient and steady‐state scattering of acoustic waves from elastic objects in fluids, and of elastic waves from inclusions in solid media—Direct and inverse scattering aspects

1991 ◽  
Vol 89 (4B) ◽  
pp. 1900-1900
Author(s):  
G. C. Gaunaurd
Keyword(s):  
Steady State ◽  
Inverse Scattering ◽  
Elastic Waves ◽  
Acoustic Waves ◽  
Solid Media ◽  
Scattering Of Acoustic Waves ◽  
Transient And Steady State

Direct and inverse scattering of acoustic waves by low‐speed free shear layers

1990 ◽  
Vol 88 (3) ◽  
pp. 1596-1602 ◽  
Author(s):  
Daljit S. Ahluwalia ◽  
Gregory A. Kriegsmann ◽  
Edward L. Reiss
Keyword(s):  
Inverse Scattering ◽  
Acoustic Waves ◽  
Shear Layers ◽  
Low Speed ◽  
Free Shear Layers ◽  
Scattering Of Acoustic Waves

MOTION OF A RIGID SPHERE IN AN ACOUSTIC WAVE FIELD

Geophysics ◽  
1945 ◽  
Vol 10 (1) ◽  
pp. 91-109 ◽  
Author(s):  
Alfred Wolf
Keyword(s):  
Acoustic Waves ◽  
Response Curve ◽  
Wave Length ◽  
Elastic Solid ◽  
Rigid Sphere ◽  
Resonance Effects ◽  
First Order ◽  
Solid Media ◽  
The Waves ◽  
Scattering Of Acoustic Waves

A rigid sphere in the field of plane acoustic waves in a fluid or in an elastic solid medium is subjected to harmonic forces in the direction of propagation of the waves, and proportional to their amplitude. The response curve is a function of the ratio of the circumference of the sphere to the wave length, and of the ratio of the mass of the sphere to the mass of the displaced medium. In an elastic solid, Poisson’s ratio must also be included among the variables. The response curve in fluids decreases continuously with decreasing wave length. In elastic solid media, the response curve has a maximum which is due to resonance effects. In general, the greater the mass of the sphere the smaller the response except in the neighborhood of resonance in elastic solid media. The scattering of acoustic waves by a rigid sphere is determined. The potential of scattered waves is developed in a series of spherical harmonics; it is shown that only the first order coefficients are affected by the motion of the sphere.

Inverse scattering of acoustic waves in an ocean with ice cover

1996 ◽  
Vol 61 (3-4) ◽  
pp. 255-283 ◽  
Author(s):  
Boris Belinskiy ◽  
Jerald P. Dauer ◽  
Yongziii Xu
Keyword(s):  
Inverse Scattering ◽  
Acoustic Waves ◽  
Ice Cover ◽  
Scattering Of Acoustic Waves
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