2 papers
math.NA2025
A boundary integral equation method for wave scattering in periodic structures via the Floquet-Bloch transform
Wangtao Lu, Kuanrong Shen, Ruming Zhang
This paper is concerned with the problem of an acoustic wave scattering in a locally perturbed periodic structure. As the total wavefield is non-quasi-periodic, effective truncatio…
math.NA2023
Does PML exponentially absorb outgoing waves scattering from a periodic surface?
Wangtao Lu, Kuanrong Shen, Ruming Zhang
The PML method is well-known for its exponential convergence rate and easy implementation for scattering problems with unbounded domains. For rough-surface scattering problems, aut…