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Grid-characteristic method using Chimera meshes for simulation of elastic waves scattering on geological fractured zonesстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Khokhlov Nikolay, Favorskaya Alena, Stetsyuk Vladislav, Mitskovets Ivan
- Журнал: Journal of Computational Physics
- Том: 446
- Год издания: 2021
- Издательство: Academic Press
- Местоположение издательства: United States
- Первая страница: 110637
- DOI: 10.1016/j.jcp.2021.110637
- Аннотация: Geological fracture zones play an important role in determining the amount of deposits in oil and gas fields. In practice, for modeling wave scattering in fractured zones, numerical methods are usually used on structured computational meshes to save computational resources. However, these numerical methods can only calculate wave scattering on cracks in the direction of the coordinate axes. To describe more realistic models of fractured fields, numerical methods are used on unstructured computational meshes or structured curvilinear computational meshes, which requires significant computing resources and is critical when solving inverse problems. In this article, we propose a numerical grid-characteristic method using Chimera meshes. In this method, we perform calculations on structured regular computational meshes, superimposing Chimera meshes rotated along the cracks. It is important that the Jacobian of rotation is set analytically, and the rotated computational meshes have a small local size, to save computational resources. © 2021 Elsevier Inc.
- Добавил в систему: Фаворская Алена Владимировна