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    Accuracy of Optimally Blended Methods for Wave Propagation

    Access Status
    Fulltext not available
    Authors
    Puzyrev, Vladimir
    Calo, Victor
    Date
    2017
    Type
    Conference Paper
    
    Metadata
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    Citation
    Puzyrev, V. and Calo, V. 2017. Accuracy of Optimally Blended Methods for Wave Propagation, in Proceedings of the 79th EAGE Conference and Exhibition: Seismic Modelling – Acoustic I, Jun 12-15 2017. Paris, France: EAGE.
    Source Conference
    79th EAGE Conference and Exhibition 2017
    DOI
    10.3997/2214-4609.201700518
    School
    School of Earth and Planetary Sciences (EPS)
    URI
    http://hdl.handle.net/20.500.11937/69170
    Collection
    • Curtin Research Publications
    Abstract

    We investigate the optimal blending in the finite element method and isogeometric analysis for wave propagation problems. These techniques lead to more cost-effective schemes with much smaller phase errors and two additional orders of convergence. The proposed blending methods are equivalent to the use of nonstandard quadrature rules and hence they can be efficiently implemented by replacing the standard Gaussian quadrature by a nonstandard rule. Numerical examples demonstrate the superior accuracy of the optimally-blended schemes compared with the classical methods.

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