@article{ref1,
title="Acoustic viscoelastic modeling by frequency-domain boundary element method",
journal="Earthquake science",
year="2017",
author="Guan, Xizhu and Fu, Li-Yun and Sun, Weijia",
volume="30",
number="2",
pages="97-105",
abstract="Earth medium is not completely elastic, with its viscosity resulting in attenuation and dispersion of seismic waves. Most viscoelastic numerical simulations are based on the finite-difference and finite-element methods. Targeted at viscoelastic numerical modeling for multilayered media, the constant-Q acoustic wave equation is transformed into the corresponding wave integral representation with its Green's function accounting for viscoelastic coefficients. An efficient alternative for full-waveform solution to the integral equation is proposed in this article by extending conventional frequency-domain boundary element methods to viscoelastic media. The viscoelastic boundary element method enjoys a distinct characteristic of the explicit use of boundary continuity conditions of displacement and traction, leading to a semi-analytical solution with sufficient accuracy for simulating the viscoelastic effect across irregular interfaces. Numerical experiments to study the viscoelastic absorption of different Q values demonstrate the accuracy and applicability of the method.<p /> <p>Language: en</p>",
language="en",
issn="1674-4519",
doi="10.1007/s11589-017-0177-4",
url="http://dx.doi.org/10.1007/s11589-017-0177-4"
}