- PII
- S3034533S0044466925020081-1
- DOI
- 10.7868/S303453325020081
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 65 / Issue number 2
- Pages
- 222-234
- Abstract
- This paper considers an example of the combined use of the grid-characteristic method on regular structured computational grids and the discontinuous Galerkin method on tetrahedral grids to solve a three-dimensional direct problem of elastic wave propagation in a geological medium consisting of four layers represented as a linear-elastic medium with different parameters and arbitrary curvilinear boundaries. A special algorithm is used to stitch the numerical methods, taking into account the features of the transition from an irregular tetrahedral computational grid to a regular structured computational grid in three-dimensional space. A comparative analysis of the convergence of the resulting combined method with the grid-characteristic method on curvilinear structured computational grids is given depending on the change in the step in spatial directions. The wave field of the modulus of the disturbance propagation velocity from the source is obtained.
- Keywords
- численное моделирование сеточно-характеристический метод разрывный метод Галеркина расчетные сетки сейсморазведка сейсмическая топография
- Date of publication
- 01.02.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 72
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