Results 21 to 30 of about 2,196 (202)

Unified GSTC-FDTD Algorithm for the Efficient Electromagnetic Analysis of 2D Dispersive Materials [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
The finite-difference time-domain (FDTD) method has been widely used for the electromagnetic wave analysis of complex media. Conventional FDTD analyses of very thin two-dimensional (2D) dispersive materials require overwhelming computing resources ...
Sangeun Jang   +3 more
doaj   +1 more source

Ultra-Broadband High-Efficiency Solar Absorber Based on Double-Size Cross-Shaped Refractory Metals

open access: yesNanomaterials, 2020
In this paper, a theoretical simulation based on a finite-difference time-domain method (FDTD) shows that the solar absorber can reach ultra-broadband and high-efficiency by refractory metals titanium (Ti) and titanium nitride (TiN).
Hailiang Li   +5 more
doaj   +1 more source

Implementation of the Hybrid ADI-FDTD Scheme to Maxwell Equation for Mathematical Modeling of Breast Tumor

open access: yesJournal of Mathematical Sciences and Modelling, 2023
Breast cancer is the most common cancer in women, and non-destructive detection of the tumor is vital. The interaction of electromagnetic waves with breast tissue and the behavior of waves after interaction are used to model tumor detection ...
Ümmü Şahin Şener
doaj   +1 more source

Peculiarities of focusing circularly and radially polarized super-Gaussian beams using ring gratings with varying relief height

open access: yesКомпьютерная оптика, 2022
The focusing features of a super-Gaussian beam, as well as Laguerre-super-Gaussian (1,0) modes with radial and circular polarizations on ring gratings (direct and inverse) with a variable height of individual relief rings were investigated in this paper.
D.A. Savelyev
doaj   +1 more source

Estudo comparativo de códigos paralelos em Fortran, C e Java na análise de uma antena monopolo, utilizando técnica numérica de FDTD

open access: yesRevista Principia, 2006
As técnicas numéricas são ferramentas extremamente poderosas utilizadas na solução de diversos problemas, pois são capazes de manipular grandes quantidades de dados, com complicadas geometrias, que são tão comuns na prática de simulações empregadas nas ...
Josivaldo de Souza Araújo   +3 more
doaj   +1 more source

CALCULATION OF TEMPERATURE DISTRIBUTION IN HEAVY OIL RESERVOIRS BY ELECTROMAGNETIC HEATING

open access: yesCT&F Ciencia, Tecnología & Futuro, 2023
The introduction of heat into a reservoir has proven to be an effective way to reduce the viscosity of heavy oils by increasing the temperature in the formation.
Herling Gonzalez Alvarez   +3 more
doaj   +1 more source

Partially Implicit FDTD (PI-FDTD) Method for Lower Dispersion and Anisotropic Errors

open access: yesIEEE Access, 2022
A new partially implicit 3D FDTD (PI-FDTD) method is introduced. The method is not unconditionally stable, but its stability limit is 6 times higher than that of the classic Yee’s FDTD method.
Mehmet Kusaf, Abdullah Yucel Oztoprak
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

FDTD Simulation of Near-Field Radiative Heat Transfer between Thin Films Supporting Surface Phonon Polaritons: Lessons Learned

open access: yesJournal of Thermal Science and Technology, 2013
We present the numerical simulation, using the finite difference time domain (FDTD) method, of the radiative heat transfer between two thin SiC slabs. We aim to explore the ability of the FDTD method to reproduce the analytical results for the Surface ...
Alejandro DATAS   +2 more
doaj   +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

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