Maxwellian material based absorbing boundary conditions

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Absorbing boundary conditions (ABCs) for the finite-difference time-domain (FDTD) method are introduced which arise from surrounding the simulation space with lossy Maxwellian material layers. Generalizations of the standard Lorentz dispersion material model, the time-derivative and two-time-derivative Lorentz material models, are developed for this purpose. The advantages of this approach include the close connection of the ABCs with the actual absorber physics associated with Maxwell's equations, the avoidance of the field-equation splitting required by the Berenger PML layers, and reduced memory and operation counts. Several multi-dimensional cases are presented to quantify the efficacy of this Maxwellian material-based approach.

Original languageEnglish (US)
Pages (from-to)237-262
Number of pages26
JournalComputer Methods in Applied Mechanics and Engineering
Volume169
Issue number3-4
StatePublished - Feb 12 1999

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Boundary conditions
boundary conditions
perfectly matched layers
avoidance
finite difference time domain method
Maxwell equation
absorbers
Derivatives
physics
Finite difference time domain method
Maxwell equations
Physics
simulation
Data storage equipment

ASJC Scopus subject areas

  • Computer Science Applications
  • Computational Mechanics

Cite this

Maxwellian material based absorbing boundary conditions. / Ziolkowski, Richard W.

In: Computer Methods in Applied Mechanics and Engineering, Vol. 169, No. 3-4, 12.02.1999, p. 237-262.

Research output: Contribution to journalArticle

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