Frequency-domain acoustic-wave modeling with hybrid absorbing boundary conditions

被引:21
作者
Moreira, Roger M. [1 ]
Cetale Santos, Marco A. [1 ]
Martins, Jorge L. [2 ]
Silva, Denis L. F. [1 ]
Pessolani, Raul B. V. [1 ]
Filho, Djalma M. S. [3 ]
Bulcao, Andre [3 ]
机构
[1] Univ Fed Fluminense, Niteroi, RJ, Brazil
[2] COGE Observ Nacl, Rio De Janeiro, Brazil
[3] CENPES PETROBRAS, Rio De Janeiro, Brazil
关键词
PERFECTLY MATCHED LAYER; FINITE-DIFFERENCE; HETEROGENEOUS MEDIA; EQUATIONS; PROPAGATION; ALGORITHM;
D O I
10.1190/GEO2014-0085.1
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Acoustic waves are modeled using a 2D frequency-domain finite-difference scheme with three different artificial damping boundaries: the absorbing boundary condition (ABC), perfectly matched layer (PML), and a hybrid strategy combining PML and ABC. We evaluated the features of each simulation for a given artificial boundary condition for homogeneous and heterogeneous media. For shorter PML layers, the hybrid absorbing scheme gave better results when compared with the traditional PML technique, with a significant reduction of the spurious reflections and a shorter computational run time.
引用
收藏
页码:A39 / A44
页数:6
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