scholarly journals Fractional biharmonic operator equation model for arbitrary frequency-dependent scattering attenuation in acoustic wave propagation

2017 ◽  
Vol 141 (1) ◽  
pp. 244-253 ◽  
Author(s):  
Wen Chen ◽  
Jun Fang ◽  
Guofei Pang ◽  
Sverre Holm
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Operator Equation ◽  
Equation Model ◽  
Biharmonic Operator ◽  
Acoustic Wave Propagation ◽  
Frequency Dependent ◽  
Scattering Attenuation ◽  
Arbitrary Frequency

A Survey on Fractional Derivative Modeling of Power-Law Frequency-Dependent Viscous Dissipative and Scattering Attenuation in Acoustic Wave Propagation

2018 ◽  
Vol 70 (3) ◽  
Author(s):  
Wei Cai ◽  
Wen Chen ◽  
Jun Fang ◽  
Sverre Holm
Keyword(s):  
Acoustic Wave ◽  
Fractional Derivative ◽  
Power Law ◽  
Wave Equations ◽  
Statistical Interpretation ◽  
Acoustic Wave Propagation ◽  
Frequency Dependent ◽  
Scattering Attenuation ◽  
Attenuation Models ◽  
Model Equations

This paper aims at presenting a survey of the fractional derivative acoustic wave equations, which have been developed in recent decades to describe the observed frequency-dependent attenuation and scattering of acoustic wave propagating through complex media. The derivation of these models and their underlying elastoviscous constitutive relationships are reviewed, and the successful applications and numerical simulations are also highlighted. The different fractional derivative acoustic wave equations characterizing viscous dissipation are analyzed and compared with each other, along with the connections and differences between these models. These model equations are mainly classified into two categories: temporal and spatial fractional derivative models. The statistical interpretation for the range of power-law indices is presented with the help of Lévy stable distribution. In addition, the fractional derivative biharmonic wave equations governing scattering attenuation are introduced and can be viewed as a generalization of viscous dissipative attenuation models.

Acoustic wave propagation in two dimensional sheared ducted flows

1997 ◽  
Author(s):  
E. Longatte ◽  
P. Lafon ◽  
S. Candel ◽  
E. Longatte ◽  
P. Lafon ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Two Dimensional ◽  
Acoustic Wave Propagation

Investigations on the influence CuO doping on elastic properties of Li2SO4–MgO–P2O5 glass system by means of acoustic wave propagation

2021 ◽  
Vol 330 ◽  
pp. 114270
Author(s):  
A. Venkata Sekhar ◽  
A.V. Kityk ◽  
J. Jedryka ◽  
P. Rakus ◽  
A. Wojciechowski ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Elastic Properties ◽  
Glass System ◽  
Acoustic Wave Propagation

Influence of NiO doping on elastic properties of Li2SO4-MgO-P2O5 glass system-Investigation by means of acoustic wave propagation

2021 ◽  
Vol 127 (5) ◽  
Author(s):  
A. Venkata Sekhar ◽  
A. Siva Sesha Reddy ◽  
A.V. Kityk ◽  
J. Jedryka ◽  
P. Rakus ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Elastic Properties ◽  
Glass System ◽  
Acoustic Wave Propagation

Imaging the Chicxulub Central Crater Zone from Large-Scale Seismic Acoustic Wave Propagation and Gravity Modeling

2021 ◽  
Author(s):  
Carlos Ortiz-Aleman ◽  
Ronald Martin ◽  
Jaime Urrutia-Fucugauchi ◽  
Mauricio Orozco del Castillo ◽  
Mauricio Nava-Flores
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Large Scale ◽  
Gravity Modeling ◽  
Acoustic Wave Propagation ◽  
Central Crater
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