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Stable and high-order accurate finite difference methods for the diffusive viscous wave equation
Umeå University, Faculty of Science and Technology, Department of Mathematics and Mathematical Statistics.ORCID iD: 0000-0002-7954-1576
2025 (English)In: Journal of Computational and Applied Mathematics, ISSN 0377-0427, E-ISSN 1879-1778, Vol. 463, article id 116476Article in journal (Refereed) Published
Abstract [en]

The diffusive viscous wave equation describes wave propagation in diffusive and viscous media. Examples include seismic waves traveling through the Earth's crust, taking into account of both the elastic properties of rocks and the dissipative effects due to internal friction and viscosity; acoustic waves propagating through biological tissues, where both elastic and viscous effects play a significant role. We propose a stable and high-order finite difference method for solving the governing equations. By designing the spatial discretization with the summation-by-parts property, we prove stability by deriving a discrete energy estimate. In addition, we derive error estimates for problems with constant coefficients using the normal mode analysis and for problems with variable coefficients using the energy method. Numerical examples are presented to demonstrate the stability and accuracy properties of the developed method.

Place, publisher, year, edition, pages
Elsevier, 2025. Vol. 463, article id 116476
Keywords [en]
Error estimate, Finite difference methods, Stability, Summation by parts, The diffusive viscous wave equation
National Category
Computational Mathematics
Identifiers
URN: urn:nbn:se:umu:diva-234147DOI: 10.1016/j.cam.2024.116476ISI: 001398027900001Scopus ID: 2-s2.0-85214530567OAI: oai:DiVA.org:umu-234147DiVA, id: diva2:1930898
Available from: 2025-01-24 Created: 2025-01-24 Last updated: 2025-01-24Bibliographically approved

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Wang, Siyang

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CiteExportLink to record
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Citation style
  • apa
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