Results 221 to 230 of about 10,426 (266)

Optimizing the perfectly matched layer

Computer Methods in Applied Mechanics and Engineering, 1998
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Collino, F., Monk, P. B.
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Generalized perfectly matched layer-an extension of Berenger's perfectly matched layer boundary condition

IEEE Microwave and Guided Wave Letters, 1995
Berenger's perfectly matched layer (PML) has been found very effective in absorbing propagating waves, but it is ineffective in absorbing evanescent waves. Also, since the impedance of PML does not match those of most of lossy media, the PML technique can generally not be applied to terminate lossy media.
null Jiayuan Fang, null Zhonghua Wu
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VGFEM with perfectly matched layers

2010 IEEE Antennas and Propagation Society International Symposium, 2010
Vector generalized finite element (VGFEM) has been recently developed and applied to solve electromagnetic problems [1, 2, 3]. VGFEM is a powerful technique as it allows us to use a wide range of functions in the solution space. Moreover, one can easily use different type of basis functions or polynomial orders in any part of the problem domain, which ...
O Tuncer, B Shanker, L C Kempel
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Perfectly Matched Layers

2008
This is a survey of some recent developments on the so called “Perfectly Matched Layer” (PML) method. We take as model the scattering problems in linear acoustics. First, the Cartesian PML equations are described in the time domain for the split Berenger and the unsplit Zhao–Cangellaris formulations.
Alfredo Bermúdez, Luis Hervella–Nieto, Andrés Prieto, Rodolfo Rodríguez   +3 more
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Numerical mode matching method with perfectly matching layer

2005 IEEE Antennas and Propagation Society International Symposium, 2005
The numerical mode matching method (NMM) with the perfectly matching layer (PML) has been presented in this paper to solve electromagnetic fields in stratified media with some possible lossless layers. When the 2D inhomogeneous media is lossy media, the field in this inhomogeneous media can be solved efficiently by using the NMM with the concepts of ...
L. Aiyong, N. Zaiping, Z. Yanwen
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Perfectly Matched Layers

2012
One common problem in computational electromagnetics is how to simulate wave propagation on an unbounded domain accurately and efficiently. One typical technique is to use the absorbing boundary conditions (ABCs) to truncate the unbounded domain to a bounded domain. The solution computed with an ABC on a bounded domain should be a good approximation to
Jichun Li, Yunqing Huang
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Perfectly matched layers and transformation optics

2009 IEEE Antennas and Propagation Society International Symposium, 2009
The perfectly matched layer (PML) is a very versatile and effective absorbing boundary condition. The PML was first introduced by Berenger [1] for the finite-difference time-domain (FDTD) method. The general purpose of the PML is to produce reflectionless absorption of waves in the continuum limit.
Teixeira, FL, Chew, WC
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Using perfectly matched layers for elastodynamics

IEEE Antennas and Propagation Society International Symposium. 1996 Digest, 2002
The simulation of elastic waves in inhomogeneous media is important in many applications such as seismic survey, acoustic well logging, and other nondestructive evaluation applications. The perfectly matched layers (PML) has been introduced by Berenger (see Computational Physics, vol.114, p.185-200, 1994) as a material absorbing boundary condition (ABC)
Liu, QH, Chew, WC
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Perfectly matched layer in cylindrical coordinates

IEEE Antennas and Propagation Society International Symposium 1997. Digest, 2002
A cylindrical perfectly matched layer is developed based on the complex coordinate system approach. By an analytic continuation of the radial coordinate to complex values, the fields can be attenuated in the radial direction with no reflection (in the continuum space) for all angles of incidence and all frequencies.
Teixeira, FL, Chew, WC
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Ellipsoidal perfectly matched layers for acoustics

Journal of the Acoustical Society of America, 2016
In this talk, we present a novel ellipsoidal formulation and massively parallel implementation of a perfectly matched layer (PML) for acoustics and structural acoustics. Perfectly matched layers and infinite elements are commonly used for finite element simulations of acoustic waves on unbounded domains.
Greg Bunting, Arun Prakash, Clark Dohrmann, Timothy F. Walsh   +3 more
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