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Numerical Absorbing Boundary Conditions Based on a Damped Wave Equation for Pseudospectral Time-Domain Acoustic Simulations
Joint Authors
Spa, C.
Reche-López, Pedro
Hernández, Erwin
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-11
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
In the context of wave-like phenomena, Fourier pseudospectral time-domain (PSTD) algorithms are some of the most efficient time-domain numerical methods for engineering applications.
One important drawback of these methods is the so-called Gibbs phenomenon.
This error can be avoided by using absorbing boundary conditions (ABC) at the end of the simulations.
However, there is an important lack of ABC using a PSTD methods on a wave equation.
In this paper, we present an ABC model based on a PSTD damped wave equation with an absorption parameter that depends on the position.
Some examples of optimum variation profiles are studied analytically and numerically.
Finally, the results of this model are also compared to another ABC model based on an hybrid formulation of the scalar perfectly matched layer.
American Psychological Association (APA)
Spa, C.& Reche-López, Pedro& Hernández, Erwin. 2014. Numerical Absorbing Boundary Conditions Based on a Damped Wave Equation for Pseudospectral Time-Domain Acoustic Simulations. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1049077
Modern Language Association (MLA)
Spa, C.…[et al.]. Numerical Absorbing Boundary Conditions Based on a Damped Wave Equation for Pseudospectral Time-Domain Acoustic Simulations. The Scientific World Journal No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1049077
American Medical Association (AMA)
Spa, C.& Reche-López, Pedro& Hernández, Erwin. Numerical Absorbing Boundary Conditions Based on a Damped Wave Equation for Pseudospectral Time-Domain Acoustic Simulations. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1049077
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049077