0
RESEARCH PAPERS

Numerical Estimation of End Corrections in Extended-Duct and Perforated-Duct Mufflers

[+] Author and Article Information
A. J. Torregrosa, A. Broatch, R. Payri

CMT Dept. Máquinas y Motores Térmicos, Universidad Politécnica de, Valencia, Spain

F. González

Dept. de ingeniería Mecánica y de Materiales, Universidad Politécnica de, Valencia, Spain

J. Vib. Acoust 121(3), 302-308 (Jul 01, 1999) (7 pages) doi:10.1115/1.2893980 History: Received February 01, 1998; Revised December 01, 1998; Online February 26, 2008

Abstract

One-dimensional models for extended-duct and perforated-duct mufflers require the introduction of end corrections in order to account for multidimensional effects at the junctions. In this paper, a numerical two-dimensional finite element calculation has been used in order to obtain information on these end corrections. The results have been validated through comparison with experimental measurements performed with a modified version of the impulse method. Then, the influence of the different geometric characteristics of the mufflers on the end correction have been studied. A general correlation in terms of relevant nondimensional parameters is given for extended-duct mufflers, whereas for perforated mufflers a general correlation has not been obtained due to the eventual coupling with other attenuation mechanisms.

Copyright © 1999 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In