Solution of time-domain acoustic wave propagation problems using a RBF interpolation model with “a priori” estimation of the free parameter

Wave Motion ◽  
2011 ◽  
Vol 48 (5) ◽  
pp. 423-440 ◽  
Author(s):  
L. Godinho ◽  
C. Dors ◽  
D. Soares ◽  
P. Amado-Mendes
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Time Domain ◽  
Free Parameter ◽  
A Priori ◽  
Interpolation Model ◽  
Acoustic Wave Propagation ◽  
A Priori Estimation

Time-Domain Modelling: Combining ESM and FDTD Methods for Acoustic Wave Propagation

2009 ◽  
Vol 95 (1) ◽  
pp. 118-127
Author(s):  
Stig Kleiven ◽  
Krister Larsson ◽  
Wolfgang Kropp
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Time Domain ◽  
Acoustic Wave Propagation ◽  
Domain Modelling ◽  
Fdtd Methods

scholarly journals On the reflection of time-domain acoustic spherical waves by a sinusoidal diffraction grating

Acta Acustica ◽  
2021 ◽  
Vol 5 ◽  
pp. 6
Author(s):  
Guochao Gao ◽  
Paul Cristini ◽  
Nathalie Favretto-Cristini ◽  
Carole Deumié
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Numerical Simulations ◽  
Time Domain ◽  
Diffraction Grating ◽  
Sinusoidal Grating ◽  
Frequency Bandwidth ◽  
Rough Interface ◽  
Acoustic Wave Propagation ◽  
Spherical Waves

This work reports on some results obtained from numerical simulations of time-domain acoustic wave propagation in the presence of a periodically rough interface. Emphasis is put on the structure of the reflected signals in the presence of a sinusoidal grating. More specifically, we investigate the effect of the frequency bandwidth of the emitted signal and the effect of the incident wavefront sphericity on the signals reflected from the rough interface and associated with the different diffraction orders.

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