EGU2020-21047, updated on 12 Jun 2020
https://doi.org/10.5194/egusphere-egu2020-21047
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Complex topography and media implementation using hp-adaptive DG-FEM for seismic wave modeling

Yang Xu1, Xiaofei Chen1, Dechao Han2, and Wei Zhang1
Yang Xu et al.
  • 1Southern University of Science and Technology, department of earth and space sciences, China (11749291@mail.sustech.edu.cn)
  • 2SINOPEC Geophysical Research Institute

Numerical simulation of seismic wavefield is helpful to understand the propagation law of seismic wave in complex media. In addition, accurate simulation of seismic wave propagation is of great importance for seismic inversion. The discontinuous Galerkin finite element method(DG-FEM) combines the advantages of finite element method(FEM) and finite volume method(FVM) to effectively simulate the propagation characteristics of seismic waves in complex medium.

In this study, we use the hp-adaptive DG -FEM to perform accurate simulation of seismic wave propagation in complex topography and medium, and compare the results with the analytical solution of the Generalized Reflection/Transmission(GRT) coefficient method. Furthermore, ADE CFS-PML is modified and applied to DG-FEM, which greatly reduces the impact of artificial boundaries.

How to cite: Xu, Y., Chen, X., Han, D., and Zhang, W.: Complex topography and media implementation using hp-adaptive DG-FEM for seismic wave modeling , EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-21047, https://doi.org/10.5194/egusphere-egu2020-21047, 2020

This abstract will not be presented.