Results 21 to 30 of about 1,717 (189)

Damping RF waves with low reflection in simulations of slab or curved magnetized plasma: Parametrization, verification and implementation of Bermudez Perfectly Matched Layers [PDF]

EPJ Web of Conferences
Most Radio-Frequency antenna simulations in magnetic fusion require emulating radiation at infinity at some boundaries of the simulation domain. To this end, the Perfectly Matched Layer (PML) technique amounts to stretching artificially the (real ...
Colas Laurent, Urbanczyk Guillaume, Helou Walid, Hillairet Julien, Maquet Vincent   +4 more
doaj   +1 more source

Absorbing boundary conditions′ selection and validation for simulation of electromagnetic propagation in interconnects of interposers applied in three-dimensional integration

Dianzi Jishu Yingyong, 2019
In order to realize the modeling and numerical simulation of the electromagnetic field distribution and wave propagation in interconnects of interposers for three-dimensional integration, the Finite Difference Time Domain(FDTD) method is used in this ...
Zhang Yunxia, Miao Min, Hu Bianxiang, Han Bo, Li Zhensong   +4 more
doaj   +1 more source

Review and Recent Developments on the Perfectly Matched Layer (PML) Method for the Numerical Modeling and Simulation of Elastic Wave Propagation in Unbounded Domains [PDF]

Archives of Computational Methods in Engineering, 2021
This review article revisits and outlines the perfectly matched layer (PML) method and its various formulations developed over the past 25 years for the numerical modeling and simulation of wave propagation in unbounded media. Based on the concept of complex coordinate stretching, an efficient mixed displacement-strain unsplit-field PML formulation for
Pled, Florent, Desceliers, Christophe
openaire   +3 more sources

ANALYSIS OF INDEXED-GUIDED HIGHLY BIREFRINGENT PHOTONIC CRYSTAL FIBER EMPLOYING DIFFERENT CLADDING GEOMETRIES

Journal of Fundamental and Applied Sciences, 2015
     In this paper, a comparative study of three geometries of highly birefringent photonic crystal fibers (HB PCF) is presented. The proposed geometries are: V type PCF, Pseudo-Panda PCF and selectively liquid-filled PCF.
A. M. Jouri, L. M. Simohamed, A. Boudrioua, O. Ziane, B. Hassani, A. Dadi   +5 more
doaj   +1 more source

Vibrations Induced by a Low Dynamic Loading on a Driven Pile: Numerical Prediction and Experimental Validation

Vibration, 2022
The present paper addresses the problem of generating and propagating vibrations induced by low-impact loading on a driven pile. In this context, an experimental test site was selected and characterized, where ground-borne vibrations induced by the ...
Aires Colaço, Pedro Alves Costa, Cecília Parente, Ahmed M. Abouelmaty   +3 more
doaj   +1 more source

Breaking the black-body limit with resonant surfaces

EPJ Applied Metamaterials, 2017
The speed with which electromagnetic energy can be wirelessly transferred from a source to the user is a crucial indicator for the performance of a large number of electronic and photonic devices.
Valagiannopoulos Constantinos A., Simovski Constantin R., Tretyakov Sergei A.   +2 more
doaj   +1 more source

Assessment of a PML Boundary Condition for Simulating an MRI Radio Frequency Coil

International Journal of Antennas and Propagation, 2008
Computational methods such as the finite difference time domain (FDTD) play an important role in simulating radiofrequency (RF) coils used in magnetic resonance imaging (MRI). The choice of absorbing boundary conditions affects the final outcome of such
Yunsuo Duan, Tamer S. Ibrahim, Bradley S. Peterson, Feng Liu, Alayar Kangarlu   +4 more
doaj   +1 more source

FEA_LiNbO3: Finite element analysis of novel LiNbO3 material based fiber for optical communication properties of nonlinear applications

Alexandria Engineering Journal, 2022
This study introduces a distinctive LiNbO3-based five-ring heptagonal-shaped photonic crystal fiber (PCF) geometry that demonstrates exceptionally high birefringence (Br) and nonlinear coefficient (NLC).
Ruhul Amin, Rana M. Taha, Baraa Riyadh Altahan, Noor Mohammadd, Kawsar Ahmed, Francis M. Bui, Fahad Ahmed Al-Zahrani, Shobhit K. Patel   +7 more
doaj   +1 more source

Direct-Splitting-Based CN-FDTD for Modeling 2D Material Nanostructure Problems

IEEE Open Journal of Antennas and Propagation, 2020
Incorporating a truncation of the complex-frequency-shifted perfectly matched layer (CFS-PML), the direct-splitting- based Crank-Nicolson finite-difference time-domain (CNDS-FDTD) is developed and applied to the infrared two-dimensional layered material (
Naixing Feng, Yuxian Zhang, Qingsheng Zeng, Meisong Tong, William T. Joines, Guo Ping Wang   +5 more
doaj   +1 more source

Application of the multiaxial perfectly matched layer (M-PML) to near-surface seismic modeling with Rayleigh waves [PDF]

GEOPHYSICS, 2011
Perfectly matched layer (PML) absorbing boundaries are widely used to suppress spurious edge reflections in seismic modeling. When modeling Rayleigh waves with the existence of the free surface, the classical PML algorithm becomes unstable when the Poisson’s ratio of the medium is high.
Zeng, Chong, Xia, Jianghai, Miller, Richard D., Tsoflias, Georgios P.   +3 more
openaire   +2 more sources