A super-spectral finite element method for sound transmission in waveguides
Peplow, Andrew LU
and Finnveden, Svante
(2004)
In Journal of the Acoustical Society of America
116(3).
p.1389-1400
- Abstract
A super-spectral finite element method is developed for the study of acoustical wave propagation in nonuniform waveguides. The formulation is based on a finite-element approach using a mixture of high order element shape functions and wave solutions. The numerical method provides solutions to acoustic duct or fluid waveguide environments which may be divided into rectangular sectors. Examples of its use for infinite acoustic waveguides include sound transmission through large ambient density variations and propagation over a geometric stair-step perturbation. Computation of a trapped mode waveform due to a point volume source within a uniform waveguide is also presented.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7ca9e40e-fd0b-4431-b969-bbdf0429f938
- author
- Peplow, Andrew
LU
and Finnveden, Svante
- publishing date
- 2004-09
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of the Acoustical Society of America
- volume
- 116
- issue
- 3
- pages
- 12 pages
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:4444327550
- ISSN
- 0001-4966
- DOI
- 10.1121/1.1777853
- language
- English
- LU publication?
- no
- id
- 7ca9e40e-fd0b-4431-b969-bbdf0429f938
- date added to LUP
- 2021-02-15 20:02:21
- date last changed
- 2025-04-04 14:19:38
@article{7ca9e40e-fd0b-4431-b969-bbdf0429f938,
abstract = {{<p>A super-spectral finite element method is developed for the study of acoustical wave propagation in nonuniform waveguides. The formulation is based on a finite-element approach using a mixture of high order element shape functions and wave solutions. The numerical method provides solutions to acoustic duct or fluid waveguide environments which may be divided into rectangular sectors. Examples of its use for infinite acoustic waveguides include sound transmission through large ambient density variations and propagation over a geometric stair-step perturbation. Computation of a trapped mode waveform due to a point volume source within a uniform waveguide is also presented.</p>}},
author = {{Peplow, Andrew and Finnveden, Svante}},
issn = {{0001-4966}},
language = {{eng}},
number = {{3}},
pages = {{1389--1400}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Journal of the Acoustical Society of America}},
title = {{A super-spectral finite element method for sound transmission in waveguides}},
url = {{http://dx.doi.org/10.1121/1.1777853}},
doi = {{10.1121/1.1777853}},
volume = {{116}},
year = {{2004}},
}