Accounting for curved boundaries in rocks by using curvilinear and Chimera grids

被引：1

作者：

Favorskaya, Alena ^{[1
,2
]}

Khokhlov, Nikolay ^{[1
,2
]}

机构：

[1] Moscow Inst Phys & Technol, 9 Inst Sky Lane, Dolgoprudnyi 141700, Moscow Region, Russia

[2] RAS, Sci Res Inst Syst Anal, 36 1 Nahimovskij Pr, Moscow 117218, Russia

来源：

KNOWLEDGE-BASED AND INTELLIGENT INFORMATION & ENGINEERING SYSTEMS (KSE 2021) | 2021年 / 192卷

基金：

俄罗斯科学基金会;

关键词：

numerical modeling; grid-characteristic method; elastic waves; curved meshes; Chimera meshes; WAVE PHENOMENA; MESHES; IMPACT;

D O I：

10.1016/j.procs.2021.09.153

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Reconstruction of rock boundaries plays an important role in seismic exploration of minerals. Seismic data processing requires multiple solutions to the corresponding direct problem. Therefore, it is of interest to develop numerical methods for solving direct problems of seismic exploration, taking into account curvilinear boundaries of rocks and surface topography. In this paper, we propose two approaches to accounting for curvilinear boundaries: using curved meshes and using Chimeric meshes. We have used the grid-characteristic numerical method for the solution of boundary value problem of elastic wave equation. To compare the results obtained, we used the method of studying wave phenomena Wave Logica. The analysis of the costs of computing resources was carried out. (C) 2021 The Authors. Published by Elsevier B.V.

引用

页码：3787 / 3794

页数：8

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