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Publications [#283879] of Qing H. Liu

Papers Published

  1. Zeng, YQ; He, JQ; Liu, QH, The application of the perfectly matched layer in numerical modeling of wave propagation in poroelastic media, Geophysics (Usa), vol. 66 no. 4 (2001), pp. 1258-1266, Society of Exploration Geophysicists [1.1487073], [doi]
    (last updated on 2023/08/08)

    Abstract:
    The perfectly matched layer (PML) was first introduced by Berenger as a material absorbing boundary condition (ABC) for electromagnetic waves. A method is developed to extend the PML to simulating seismic wave propagation in poroelastic media. This nonphysical material is used at the computational edge of a finite-difference algorithm as an ABC to truncate unbounded media. The incorporation of PML in Biot's equations is different from other PML applications in that an additional term involving convolution between displacement and a loss coefficient in the PML region is required. Numerical results show that the PML ABC attenuates the outgoing waves effectively

    Keywords:
    seismic waves;wave propagation;


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