Parallel algorithm with modulus structure for simulation of seismic wave propagation in 3D multiscale multiphysics media

Victor Kostin, Vadim Lisitsa, Galina Reshetova, Vladimir Tcheverda

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

4 Цитирования (Scopus)

Аннотация

This paper presents a problem-oriented approach, designed for the numerical simulation of seismic wave propagation in models containing geological formations with complex properties such as anisotropy, attenuation, and small-scale heterogeneities. Each of the named property requires a special treatment that increases the computational complexity of an algorithm in comparison with ideally elastic isotropic media. At the same time, such formations are typically relatively small, filling about 25% of the model, thus the local use of computationally expensive approaches can speed-up the simulation essentially. In this paper we discuss both mathematical and numerical aspects of the hybrid algorithm paying most attention to its parallel implementation. At the same time essential efforts are spent to couple different equations and, hence, different finite-difference stencils to describe properly the different nature of seismic wave propagation in different areas. The main issue in the coupling is to suppress numerical artifacts down to the acceptable level, usually a few tenth of the percent.

Язык оригиналаанглийский
Название основной публикацииParallel Computing Technologies - 14th International Conference, PaCT 2017, Proceedings
РедакторыVictor Malyshkin
ИздательSpringer-Verlag GmbH and Co. KG
Страницы42-57
Число страниц16
ISBN (печатное издание)9783319629315
DOI
СостояниеОпубликовано - 2017
Опубликовано для внешнего пользованияДа
Событие14th International Conference on Parallel Computing Technologies, PaCT 2017 - Nizhny Novgorod, Российская Федерация
Продолжительность: 4 сен 20178 сен 2017

Серия публикаций

НазваниеLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Том10421 LNCS
ISSN (печатное издание)0302-9743
ISSN (электронное издание)1611-3349

Конференция

Конференция14th International Conference on Parallel Computing Technologies, PaCT 2017
СтранаРоссийская Федерация
ГородNizhny Novgorod
Период04.09.201708.09.2017

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