A Numerical Model of Acoustic Choking, Part II: Shocked Solutions
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.
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
Mechanical and Aerospace Engineering
Article - Journal
© 1986 Elsevier, All rights reserved.