Time-domain simulations of sound propagation in a stratified atmosphere over an impedance ground

Benjamin Cott́; Philippe Blanc-Benon

doi:10.1121/1.3104633

Time-domain simulations of sound propagation in a stratified atmosphere over an impedance ground

Benjamin Cott́
, Philippe Blanc-Benon

Laboratoire de Mécanique des Fluides et d'Acoustique

Research output: Contribution to journal › Article › peer-review

Abstract

Finite-difference time-domain simulations of broadband sound propagation in a stratified atmosphere are presented. A method recently proposed to obtain an impedance time-domain boundary condition is implemented in a linearized Euler equations solver, which enables to study long range sound propagation over an impedance ground. Some features of the pressure pulse evolution with time are analyzed in both upward-and downward-refracting conditions, and the time-domain simulations are compared to parabolic equation calculations in the frequency domain to show the effectiveness of the proposed impedance boundary condition.

Original language	English
Pages (from-to)	EL202-EL207
Journal	Journal of the Acoustical Society of America
Volume	125
Issue number	5
DOIs	https://doi.org/10.1121/1.3104633
Publication status	Published - 18 May 2009
Externally published	Yes

Access to Document

10.1121/1.3104633

Cite this

@article{7472a45950f44baa89a1cf1962bdeece,

title = "Time-domain simulations of sound propagation in a stratified atmosphere over an impedance ground",

abstract = "Finite-difference time-domain simulations of broadband sound propagation in a stratified atmosphere are presented. A method recently proposed to obtain an impedance time-domain boundary condition is implemented in a linearized Euler equations solver, which enables to study long range sound propagation over an impedance ground. Some features of the pressure pulse evolution with time are analyzed in both upward-and downward-refracting conditions, and the time-domain simulations are compared to parabolic equation calculations in the frequency domain to show the effectiveness of the proposed impedance boundary condition.",

author = "Benjamin Cot{\'t} and Philippe Blanc-Benon",

year = "2009",

month = may,

day = "18",

doi = "10.1121/1.3104633",

language = "English",

volume = "125",

pages = "EL202--EL207",

journal = "Journal of the Acoustical Society of America",

issn = "0001-4966",

number = "5",

}

TY - JOUR

T1 - Time-domain simulations of sound propagation in a stratified atmosphere over an impedance ground

AU - Cott́, Benjamin

AU - Blanc-Benon, Philippe

PY - 2009/5/18

Y1 - 2009/5/18

N2 - Finite-difference time-domain simulations of broadband sound propagation in a stratified atmosphere are presented. A method recently proposed to obtain an impedance time-domain boundary condition is implemented in a linearized Euler equations solver, which enables to study long range sound propagation over an impedance ground. Some features of the pressure pulse evolution with time are analyzed in both upward-and downward-refracting conditions, and the time-domain simulations are compared to parabolic equation calculations in the frequency domain to show the effectiveness of the proposed impedance boundary condition.

AB - Finite-difference time-domain simulations of broadband sound propagation in a stratified atmosphere are presented. A method recently proposed to obtain an impedance time-domain boundary condition is implemented in a linearized Euler equations solver, which enables to study long range sound propagation over an impedance ground. Some features of the pressure pulse evolution with time are analyzed in both upward-and downward-refracting conditions, and the time-domain simulations are compared to parabolic equation calculations in the frequency domain to show the effectiveness of the proposed impedance boundary condition.

UR - https://www.scopus.com/pages/publications/65549125464

U2 - 10.1121/1.3104633

DO - 10.1121/1.3104633

M3 - Article

AN - SCOPUS:65549125464

SN - 0001-4966

VL - 125

SP - EL202-EL207

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

IS - 5

ER -

Time-domain simulations of sound propagation in a stratified atmosphere over an impedance ground

Abstract

Access to Document

Other files and links

Fingerprint

Cite this