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Conservative Finite-Difference Scheme for High-Frequency Acoustic Waves Propagating at an Interface Between Two Media

Published online by Cambridge University Press:  20 August 2015

J. Staudacher  and
É Savin
J. Staudacher*
Affiliation:
ONERA - The French Aerospace Lab, F-92322 Chătillon, France
É Savin*
Affiliation:
ONERA - The French Aerospace Lab, F-92322 Chătillon, France
*
Corresponding author.Email address:joan.staudacher@ecp.fr
Email:eric.savin@onera.fr
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Abstract

This paper is an introduction to a conservative, positive numerical scheme which takes into account the phenomena of reflection and transmission of high frequency acoustic waves at a straight interface between two homogeneous media. Explicit forms of the interpolation coefficients for reflected and transmitted wave vectors on a two-dimensional uniform grid are derived. The propagation model is a Liouville transport equation solved in phase space.

Keywords

35L4565M0665M1270H99Acousticshigh-frequencyLiouville equationenergy conservationreflectiontransmission
Type
Research Article
Information
Communications in Computational Physics , Volume 11 , Issue 2 , February 2012 , pp. 351 - 366
Copyright
Copyright © Global Science Press Limited 2012

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References

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