scholarly journals 3D frequency‐domain finite‐difference modeling of acoustic wave propagation using a massively parallel direct solver: a feasibility study

2006 ◽  
Author(s):  
S. Operto ◽  
J. Virieux ◽  
P. Amestoy ◽  
L. Giraud ◽  
J. Y. L'Excellent
Keyword(s):  
Wave Propagation ◽  
Finite Difference ◽  
Acoustic Wave ◽  
Frequency Domain ◽  
Feasibility Study ◽  
Massively Parallel ◽  
Acoustic Wave Propagation ◽  
Direct Solver

scholarly journals Identification of Acoustic Wave Propagation Pattern of a Supersonic Jet Using Frequency-Domain POD

2018 ◽  
Vol 61 (6) ◽  
pp. 281-284 ◽  
Author(s):  
Yuta OZAWA ◽  
Taku NONOMURA ◽  
Masayuki ANYOJI ◽  
Hiroya MAMORI ◽  
Naoya FUKUSHIMA ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Frequency Domain ◽  
Supersonic Jet ◽  
Acoustic Wave Propagation ◽  
Propagation Pattern

The role and application of entropy terms for acoustic wave modeling by the finite‐difference method

Geophysics ◽  
1984 ◽  
Vol 49 (9) ◽  
pp. 1457-1465 ◽  
Author(s):  
M. A. Dablain
Keyword(s):  
Wave Propagation ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Acoustic Wave ◽  
Difference Scheme ◽  
Acoustic Wave Propagation ◽  
Central Difference ◽  
Central Difference Scheme ◽  
One Dimensional ◽  
The Finite Difference Method

The significance of entropy‐like terms is examined within the context of the finite‐difference modeling of acoustic wave propagation. The numerical implications of dissipative mechanisms are tested for performance within two very distinct differencing algorithms. The two schemes which are reviewed with and without dissipation are (1) the standard central‐difference scheme, and (2) the Lax‐Wendroff two‐step scheme. Numerical results are presented comparing the short‐wavelength response of these schemes. In order to achieve this response, the linearized version of an exploding one‐dimensional source is used.

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