Upscaling acoustic wave equation using renormalization group theory

PreviousNext No AccessSecond International Meeting for Applied Geoscience & EnergyUpscaling acoustic wave equation using renormalization group theoryAuthors: Ajay MalkotiShravan M. HanasogeRene Edouard PlessixAjay MalkotiTata Institute of Fundamental Research and CSIR-National Geophysical Research InstituteSearch for more papers by this author, Shravan M. HanasogeTata Institute of Fundamental ResearchSearch for more papers by this author, and Rene Edouard PlessixShell Global Solutions InternationalSearch for more papers by this authorhttps://doi.org/10.1190/image2022-3744890.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractSeismic waves interact with a broad range of heterogeneities as they propagate through the Earth. Simulating this full range of scales for wave propagation requires capturing heterogeneities of all scales, which can be computationally unaffordable. In such cases, we rely on macroscopic representations of media obtained through an upscaling process that preserves the effects of small-scale heterogeneities (in comparison to the wavelengths of interest). Here we discuss the application of the renormalization-group (RG) theory-based upscaling to the two-dimensional acoustic wave equation. The upscaled models obtained using this method show a good consistency for generated waveforms.Keywords: upscaling, acoustic, finite differencePermalink: https://doi.org/10.1190/image2022-3744890.1FiguresReferencesRelatedDetails Second International Meeting for Applied Geoscience & EnergyISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2022 Pages: 3694 publication data© 2022 Published in electronic format with permission by the Society of Exploration Geophysicists and the American Association of Petroleum GeologistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 15 Aug 2022 CITATION INFORMATION Ajay Malkoti, Shravan M. Hanasoge, and Rene Edouard Plessix, (2022), "Upscaling acoustic wave equation using renormalization group theory," SEG Technical Program Expanded Abstracts : 2507-2511. https://doi.org/10.1190/image2022-3744890.1 Plain-Language Summary Keywordsupscalingacousticfinite differencePDF DownloadLoading ...