Results 11 to 20 of about 10,426 (266)

Perfectly matched layers in the thin layer method [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Park, Joonsang   +2 more
openaire   +6 more sources

The Perfectly Matched Layer in Curvilinear Coordinates [PDF]

open access: yesSIAM Journal on Scientific Computing, 1998
A Maxwell system in two space dimensions is considered. Change of variable technique is used to construct Berenger's perfectly matched layer (PML) model in curvilinear coordinates. For the time harmonic scattering problem the existence of a unique solution is proved for the obtained model with infinite layer.
Collino, Francis, Monk, Peter
openaire   +1 more source

Dynamic soil-structure interaction analysis in time domain based on a modified version of perfectly matched discrete layers

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
Analysis of soil-structure interaction is commonly conducted by dividing the infinite domain of the soil into two domains: interior and exterior domains.
Dong Van Nguyen, Dookie Kim
doaj   +1 more source

Frequency‐dependent finite‐difference time‐domain method based on iterated Crank–Nicolson scheme

open access: yesElectronics Letters, 2023
The finite‐difference time‐domain (FDTD) method based on the iterated Crank–Nicolson (ICN) scheme is extended to a frequency‐dependent version. The Drude model is used to express a metal dispersion, which is incorporated into the iterated Crank–Nicolson ...
Jun Shibayama   +3 more
doaj   +1 more source

Three-dimensional hybrid asynchronous perfectly matched layer for wave propagation in heterogeneous semi-infinite media

open access: yesComptes Rendus. Mécanique, 2021
This paper presents an efficient hybrid asynchronous three-dimensional (3D) perfectly matched layer (PML) for modeling unbounded domains. The proposed unsplit explicit or implicit 3D PML formulation is implemented in the framework of a heterogeneous ...
Li, Sijia   +3 more
doaj   +1 more source

Zeonex based decagonal photonic crystal fiber (D-PCF) in the terahertz (THz) band for chemical sensing applications

open access: yesSensing and Bio-Sensing Research, 2021
In this research work, we have proposed an excellent work combination of five layers spherical shape in cladding area with two layers of same circular shape in rotated-hexa core based decagonal photonic crystal fiber (D-PCF) and explicated the simulation
Shuvo Sen   +4 more
doaj   +1 more source

Well-Designed Termination Wall of Perfectly Matched Layers for ATS-FDTD Method

open access: yesInternational Journal of Antennas and Propagation, 2019
This paper presents a well-designed termination wall for the perfectly matched layers (PML). This termination wall is derived from Mur’s absorbing boundary condition (ABC) with special difference schemes. Numerical experiments illustrate that PML and the
Ju Ge, Liping Gao, Rengang Shi
doaj   +1 more source

Using Perfectly Matched Layer in a GPU simulation of ultrasound NDT

open access: yesResearch and Review Journal of Nondestructive Testing, 2023
Full Waveform Inversion (FWI) is a state-of-the-art method of image reconstruction with promising results for seismology and NDT. FWI estimates the velocity of wave propagation along the inspected object by iteratively comparing acquired data with ...
Felipe Derewlany Gutierrez   +5 more
doaj   +1 more source

Processing the Artificial Edge-Effects for Finite-Difference Frequency-Domain in Viscoelastic Anisotropic Formations

open access: yesApplied Sciences, 2022
Real sedimentary media can usually be characterized as transverse isotropy. To reveal wave propagation in the true models and improve the accuracy of migrations and evaluations, we investigated the algorithm of wavefield simulations in an anisotropic ...
Jixin Yang, Xiao He, Hao Chen
doaj   +1 more source

A reflectionless discrete perfectly matched layer [PDF]

open access: yesJournal of Computational Physics, 2019
Perfectly Matched Layer (PML) is a widely adopted non-reflecting boundary treatment for wave simulations. Reducing numerical reflections from a discretized PML has been a long lasting challenge. This paper presents a new discrete PML for the multi-dimensional scalar wave equation which produces no numerical reflection at all.
openaire   +3 more sources

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