Full text loading...
-
A Symmetrie Perfectly Matched Layer Using a 9-Point Finite Difference Method for 2D Helmholtz Equation
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 79th EAGE Conference and Exhibition 2017, Jun 2017, Volume 2017, p.1 - 5
Abstract
Summary
Our strategy is to construct a symmetric matrix incorporating both the PML and the dispersion-minimizing property.
We introduce a symmetric form of the PML for 2D Helmholtz equation so that a numerical factorization of a sparse matrix gets efficient. It reduces computational time and memory consumption. The symmetric PML equation is more suitable to applications utilizing Helmholtz equation than the nonsymmetric PML equation.
© EAGE Publications BV