A Numerical Model of Acoustic Choking, Part II: Shocked Solutions

Author

Noel Walkington
Walter Eversman, Missouri University of Science and TechnologyFollow

Abstract

The one dimensional equations of gas dynamics are used to model subsonic acoustic choking. This model can accommodate non-linear distortion of waves and the eventual formation of shock waves. Several finite differencing schemes are adapted to obtain solutions. The results obtained with the various schemes are compared with the asymptotic results available. The results suggest that no one finite differencing scheme gives solutions significantly better than the others and that most of the difference solutions are close to the asymptotic results. If the acoustic shock wave is sufficiently strong it almost annihilates the acoustic wave; in this situation numerical errors may dominate the results. Such solutions involve very large acoustic attenuations. © 1986 Academic Press Inc. (London) Limited.

Recommended Citation

N. Walkington and W. Eversman, "A Numerical Model of Acoustic Choking, Part II: Shocked Solutions," Journal of Sound and Vibration, Elsevier, Jan 1986.

The definitive version is available at https://doi.org/10.1016/S0022-460X(86)80133-X

Department(s)

Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

0022-460X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1986 Elsevier, All rights reserved.

Publication Date

01 Jan 1986