TITLE:
Frequency-domain Elastic wave Simulation Based on the Nonoverlapping Domain Decomposition Method
AUTHORS:
Wensheng Zhang, Yinyun Dai
KEYWORDS:
Finite Difference; Nonoverlapping DDM; Elastic wave Equation; Wave Simulation; Preconditioner; Absorbing Boundary Conditions
JOURNAL NAME:
American Journal of Computational Mathematics,
Vol.3 No.3B,
October
25,
2013
ABSTRACT:
A new wave simulation technique for the elastic wave
equation in the frequency domain based on a no overlapping domain decomposition
algorithm is investigated. The boundary conditions and the finite difference discrimination
of the elastic wave equation are derived. The algorithm of no overlapping domain
decomposition method is given. The method solves the elastic wave equation by
iteratively solving sub problems defined on smaller sub domains. Numerical
computations both for homogeneous and inhomogeneous media show the
effectiveness of the proposed method. This method can be used in the
full-waveform inversion.