Results 31 to 40 of about 24,972 (270)

Large-scale FDTD computation for computational electromagnetics [PDF]

open access: yes, 2004
Our recent studies related to the large-scale FDTD computation for computational electromagnetics are presented as an activity report. In this paper, high accuracy FDTD methods and the FDTD parallel computaion are described.
Kashiwa, Tatsuya
core   +1 more source

From Time-Collocated to Leapfrog Fundamental Schemes for ADI and CDI FDTD Methods

open access: yesAxioms, 2022
The leapfrog schemes have been developed for unconditionally stable alternating-direction implicit (ADI) finite-difference time-domain (FDTD) method, and recently the complying-divergence implicit (CDI) FDTD method.
Eng Leong Tan
doaj   +1 more source

Seismic Numerical Simulation Based on Half-precision Floating-point Number Optimization and OpenMP

open access: yesCT Lilun yu yingyong yanjiu
Studying the propagation law of seismic wavefields is the basis of seismic exploration. The finite difference method is commonly used to solve the wave equation for seismic forward modeling, which has advantages of low memory usage, fast computation ...
Wenge LIU   +4 more
doaj   +1 more source

The analysis of general two-dimensional PEC structures using a modified CPFDTD algorithm [PDF]

open access: yes, 1996
The use of the contour path finite difference time domain (CPFDTD) method with locally distorted contours has been shown to give accurate results for curved metal structures.
Schneider, JB, Railton, CJ, Craddock, IJ
core   +1 more source

Novel structure of optical add/drop filters and multi-channel filter based on photonic crystal for using in optical telecommunication devices [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2019
In this paper, Using a 2D photonic crystal and a novel square ring resonator,several compact and simple structures have been introduced in the present paper toconstruct optical add/drop filters and multi-channel filter.
Vahid Fallahi, Mahmood Seifouri
doaj  

1D Quantum Simulations of Electron Rescattering with Metallic Nanoblades

open access: yesInstruments, 2019
Electron rescattering has been well studied and simulated for cases with ponderomotive energies of the quasi-free electrons, derived from laser−gas and laser−surface interactions, lower than 50 eV.
Joshua Mann   +2 more
doaj   +1 more source

Finite difference time domain simulation of the Earth-ionosphere resonant cavity: Schumann resonances [PDF]

open access: yes, 2005
This paper presents a numerical approach to study the electrical properties of the Earth's atmosphere. The finite-difference time-domain (FDTD) technique is applied to model the Earth's atmosphere in order to determine Schumann resonant frequencies of ...
Morente, JA   +5 more
core   +1 more source

Optimizing FDTD Memory Bandwidth by Using Block Float-Point Arithmetic

open access: yesElektronika ir Elektrotechnika, 2018
Finite-difference time-domain is a numerical method used for modelling of computational electrodynamics. The method is resource intensive, especially regarding memory usage. Multiple memory accesses are required per single computation so memory bandwidth
Stefan Pijetlovic   +2 more
doaj   +1 more source

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

Practical method for the determination of time step in non-orthogonal FDTD

open access: yes, 2001
The Non-Orthogonal FDTD algorithm is well-suited to the modelling of curved structures, however users of the technique frequently have difficulty determining an appropriate time step for the algorithm.
Nilavalan, R, Railton, CJ, Craddock, IJ
core   +1 more source

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