Results 11 to 20 of about 1,717 (189)
A STUDY ON EFFICIENCY OF PERFECTLY MATCHED LAYER (PML) FOR SEISMIC SOIL-STRUCTURE INTERACTION
Direkt yöntem, zemin-yapı etkileşimi (SSI) analizlerinde kullanılan bir sonlu eleman yaklaşımıdır. Bu yöntemin temel varsayımı, sonsuz zemin ortamının, farklı sınır koşulları uygulanarak sınırlandırılmış zemin ortamına dönüştürülmesidir. Bu çalışmanın amacı, SSI analizi için Mükemmel Eşleşen Katmanların (PML) etkinliğini incelemektir.
GENÇ, Abdulkadir +2 more
openaire +2 more sources
The perfectly matched layer (PML) for hyperbolic wave propagation problems: A review
It is well-known that reliable and efficient domain truncation is crucial to accurate numerical solution of most wave propagation problems. The perfectly matched layer (PML) is a method which, when stable, can provide a domain truncation scheme which is convergent with increasing layer width/damping.
Duru, Kenneth, Kreiss, Gunilla
openaire +2 more sources
By incorporating higher order formulation with perfectly matched layer (PML) implementation, unconditionally stable computationally efficient locally one-dimensional (LOD) algorithm with improved absorption is proposed for simulating ground penetrating ...
Peiyu Wu +4 more
doaj +1 more source
Auxiliary differential equation (ADE) implementation of complex-frequency shifted perfectly matched layer (CFS-PML) [PDF]
In this paper, an efficient auxiliary differential equation (ADE) method is proposed to implement stretched-coordinate perfectly matched layer (SC-PML) in finite-difference time-domain (FDTD). The derivation of discrete difference operators for the ADE-PML equation for FDTD is also presented.
Yunpeng Ma, Peilin Huang, Jinzu Ji
openaire +1 more source
To simulate complex subsurface sensing and imaging problems with both propagating and evanescent waves by the finite-difference time-domain (FDTD) method, the highly-accurate second-order perfectly matched layer (SO-PML) formulations based on the direct ...
Naixing Feng +4 more
doaj +1 more source
To efficiently simulate the bandpass electromagnetic problems by employing the finite-difference time-domain (FDTD) algorithm, unconditionally stable implementation is proposed based upon the complex envelope method and the Crank-Nicolson Direct ...
Shihong Wu +4 more
doaj +1 more source
Notes on Perfectly Matched Layers (PMLs)
This note is intended as a brief introduction to the theory and practice of perfectly matched layer (PML) absorbing boundaries for wave equations, originally developed for MIT courses 18.369 and 18.336. It focuses on the complex stretched-coordinate viewpoint, and also discusses the limitations of PML.
openaire +2 more sources
Low-pressure discharge causes air ionization resulting in performance degeneration or failure for the satellite sensors in outer space. Here, a one-step Crank-Nicolson Direct-Splitting (CNDS) algorithm is proposed to evaluate the electrical behavior of ...
Yangjing Wang +4 more
doaj +1 more source
PERFECTLY MATCHED LAYER (PML) FOR TRANSIENT WAVE PROPAGATION IN A MOVING FRAME OF REFERENCE [PDF]
In relation to the development of a Rolling Wheel Deflectomet er (RWD), which is a non-destructive testing device for measuring pavementdeflections, a finite element model for obtaining the soil/pavement response is developed. Abs orbing boundary conditions are necessary in order to prevent reflections of the waves propaga ting through the soil due to ...
S. Madsen, S. Krenk, O. Hededal
openaire +1 more source
This paper describes a micro-cored photonic crystal fiber-based gas sensor that uses a simple structure and proper analysis has done to detect sulfur dioxide gas.
Md Jayed Bin Murshed Leon +1 more
doaj +1 more source

