Results 1 to 10 of about 2,688 (224)

Analysis of the spectrum of a Cartesian Perfectly Matched Layer (PML) approximation to acoustic scattering problems

open access: yesJournal of Mathematical Analysis and Applications, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Seungil Kim, Joseph E Paściak
exaly   +6 more sources

Perfectly Matched Layer for Accurate FDTD for Anisotropic Magnetized Plasma [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2020
In this work, we propose a stable perfectly matched layer (PML) for accurate finite-difference time-domain (FDTD) methods for analyzing electromagnetic wave propagation in the anisotropic magnetized plasma region.
Jeahoon Cho   +2 more
doaj   +1 more source

Application of the Reflectionless Discrete Perfectly Matched Layer for Acoustic Wave Simulation

open access: yesFrontiers in Earth Science, 2022
The perfectly matched layer (PML) is one of the most popular absorbing boundary conditions for simulating seismic waves. In theory, the PML can absorb incident waves at any incident angle and any frequency in a medium. However, numerical reflections will
Yingjie Gao   +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

The perfectly matched layer (PML) for hyperbolic wave propagation problems: A review

open access: yesCoRR, 2022
It is well-known that reliable and efficient domain truncation is crucial to accurate numerical solution of most wave propagation problems. The perfectly matched layer (PML) is a method which, when stable, can provide a domain truncation scheme which is convergent with increasing layer width/damping.
Kenneth Duru, Gunilla Kreiss
openaire   +2 more sources

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

Comments on “Direct-Splitting-Based CN-FDTD for Modeling 2-D Material Nanostructure Problems”

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
The authors proposed an unconditionally stable perfectly matched layer (PML) based on the Crank-Nicolson direct-splitting (CNDS) method to analyze nanostructure problems in [1].
Yu Hang Yang
doaj   +1 more source

Combined Boundary of CPML and Feature Analysis within Frequency-Space Domain

open access: yesCT Lilun yu yingyong yanjiu, 2022
In the process of numerical simulation, boundary reflection is an important factor which affect the numerical simulation results. The actual underground medium holds anisotropic characteristics.
Guihua LI   +3 more
doaj   +1 more source

A Complex Domain Mapping of the SCN for an Effective PML Implementation in TLM

open access: yesIEEE Open Journal of Antennas and Propagation, 2020
An improved implementation of the perfectly matched layer (PML) is developed for the Transmission Line Modelling (TLM) method based on a mapping of the symmetrical condensed node (SCN) to an analytically extended geometric space. By mapping the TLM node,
Jomiloju S. Odeyemi   +3 more
doaj   +1 more source

PERFECTLY MATCHED LAYER (PML) FOR TRANSIENT WAVE PROPAGATION IN A MOVING FRAME OF REFERENCE [PDF]

open access: yesProceedings of the 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2013), 2014
In relation to the development of a Rolling Wheel Deflectomet er (RWD), which is a non-destructive testing device for measuring pavementdeflections, a finite element model for obtaining the soil/pavement response is developed. Abs orbing boundary conditions are necessary in order to prevent reflections of the waves propaga ting through the soil due to ...
Madsen, Stine Skov; id_orcid 0000-0002-3932-5916   +2 more
openaire   +2 more sources

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