Results 11 to 20 of about 15,381 (219)

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

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

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

Method for optimising the performance of PML in anchor‐loss limited model via COMSOL

open access: yesIET Science, Measurement & Technology, 2022
Perfectly matched layer has been used for solving anchor‐loss limited quality factor in the Micro electromechanical systems. However, setting up a well‐behaved perfectly matched layer requires users to change the parameters of a perfectly matched layer ...
Peng Li, Jun‐Yu Ou, Jize Yan
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

Second-order scalar wave field modeling with a first-order perfectly matched layer [PDF]

open access: yesSolid Earth, 2018
The forward modeling of a scalar wave equation plays an important role in the numerical geophysical computations. The finite-difference algorithm in the form of a second-order wave equation is one of the commonly used forward numerical algorithms ...
X. Zhang, D. Zhang, Q. Chen, Y. Yang
doaj   +1 more source

Perfectly Matched Layer Formulation of the INBC-FDTD Algorithm for Electromagnetic Analysis of Thin Film Materials

open access: yesIEEE Access, 2021
The impedance network boundary condition (INBC)-based finite-difference time-domain (FDTD) method has been widely used for electromagnetic analysis of highly conductive thin film materials.
Sangeun Jang, Kyung-Young Jung
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

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

Implementation of uniaxial perfectly matched layer based on hexahedron element in discontinuous Galerkin time domain

open access: yesIET Microwaves, Antennas & Propagation, 2021
The uniaxial perfectly matched layer (UPML), an important link in the numerical calculation of the discontinuous Galerkin time domain (DGTD), truncates the size of the computational domain and absorbs the outward‐travelling waves.
Zhennan Xiao, Bing Wei, Debiao Ge
doaj   +1 more source

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