Numerical Techniques in Linear Duct Acoustics—A Status Report

Author:

Baumeister K. J.1

Affiliation:

1. NASA Lewis Research Center, Cleveland, Ohio 44135

Abstract

A review is presented covering both finite difference and finite element analysis of small amplitude (linear) sound propagation in straight and variable area ducts with flow, as might be found in a typical turbojet engine duct, muffler, or industrial ventilation system. Both steady-state and transient theories are discussed. Emphasis is placed on the advantages and limitations associated with the various numerical techniques. Examples of practical problems are given for which the numerical techniques have been applied.

Publisher

ASME International

Subject

General Medicine

Cited by 17 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

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2. Transfer matrix of conical waveguides with any geometric parameters for increased precision in computer modeling;The Journal of the Acoustical Society of America;2007

3. A TIME-DOMAIN METHOD FOR DUCT ACOUSTICS;Journal of Sound and Vibration;2000-11

4. A least-squares spectral element method for sound propagation in acoustic ducts;The Journal of the Acoustical Society of America;1998-11

5. GREEN FUNCTION DISCRETIZATION FOR NUMERICAL SOLUTION OF THE HELMHOLTZ EQUATION;Journal of Sound and Vibration;1995-11

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