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In this paper, we focus on the propagation of waves in the soil which is an unbounded medium. An approach using absorbing layers based on Kosloff damping is evaluated in comparison to classical absorbing layers based on Rayleigh damping. Examples of Lamb’s test are implemented in MATLAB using hybrid time integration schemes, to demonstrate the advantages of the proposed approach over Rayleigh absorbing layers in terms of precision and computational efficiency. The efficiency of Kosloff absorbing layers is validated, highlighting their advantages over Rayleigh damping, which is more computationally expensive and frequency dependent.

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Absorbing Layers for Wave Propagation in Unbounded Medium Using the Subdomain Coupling Method and Hybrid Time Integration

  • 会议论文

  • 发表日期：

    2025年

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  • Fatima Osman,
  • Sijia Li,
  • Walid Larbi,
  • Naim Ayoub,
  • Joseph Pais,
  • Rawad Assaf

摘要

In this paper, we focus on the propagation of waves in the soil which is an unbounded medium. An approach using absorbing layers based on Kosloff damping is evaluated in comparison to classical absorbing layers based on Rayleigh damping. Examples of Lamb’s test are implemented in MATLAB using hybrid time integration schemes, to demonstrate the advantages of the proposed approach over Rayleigh absorbing layers in terms of precision and computational efficiency. The efficiency of Kosloff absorbing layers is validated, highlighting their advantages over Rayleigh damping, which is more computationally expensive and frequency dependent.