Analysis of Wave Scattering from a Viscoelastic Layer with Complex Shape-Reference-Cited by-同舟云学术

Analysis of Wave Scattering from a Viscoelastic Layer with Complex Shape

Published:2017-09 Issue:03 Volume:25 Page:1750023
ISSN:0218-396X
Container-title:Journal of Computational Acoustics
language:en
Short-container-title:J. Comp. Acous.

Author:

Favretto-Cristini Nathalie¹^ORCID,Aizenberg Arkady M.²,Ursin Bjørn³⁴⁵,Cristini Paul¹,Tantsereva Anastasiya³

Affiliation:

1. Aix-Marseille Univ, CNRS, Centrale Marseille, LMA, Marseille, France

2. Institute of Petroleum Geology and Geophysics SB RAS, Pr.Ac.Koptyug 3, Novosibirsk 630090, Russia

3. Department of Petroleum Engineering and Applied Geophysics, Norwegian University of Science and Technology, S.P.Andersens vei 15A, Trondheim N-7491, Norway

4. Centro de Pesquisa em Geofísica e Geologia, Salvador, Bahia, Brazil

5. National Institute of Science and Technology of Petroleum Geophysics, Instituto de Geociências Universidade, Federal da Bahia Campus Universitário da Federação, Salvador, Bahia, Brazil

Abstract

The Discretized Kirchhoff Integral method has been recently tested against laboratory experiments using a model with surface curvatures and sharp edges generating wave diffraction effects. Comparisons between numerical and laboratory data have exhibited a good quantitative fit in terms of time arrivals and amplitudes, except in the vicinity of secondary shadow boundaries created by the interaction of the edges of some topographical structures. Following this work, the effect of multiple scattering and the surface curvatures on the wavefield is studied here, using the so-called diffraction attenuation coefficient, in order to define the cases where these effects may be neglected in the numerical modeling without loss of accuracy.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Acoustics and Ultrasonics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218396X17500230

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