Upscaling acoustic wave equation using Renormalization Group theory

Ajay Malkoti, Shravan M. Hanasoge, René Édouard Plessix

Research output: Contribution to journalConference articlepeer-review


Seismic 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.

Original languageEnglish (US)
Pages (from-to)2507-2511
Number of pages5
JournalSEG Technical Program Expanded Abstracts
StatePublished - Aug 15 2022
Event2nd International Meeting for Applied Geoscience and Energy, IMAGE 2022 - Houston, United States
Duration: Aug 28 2022Sep 1 2022

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geophysics


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