Prediction of noise generated by a cabin outflow valve using the STAR-CD code

Authors

  • George Waller Bombardier Aerospace, 123 Garratt Blvd., Ont. M3K 1Y5, Canada

Keywords:

Algorithms, Codes (symbols), Computer simulation, Finite volume method, Linear equations, Turbulence, Cabin outflow valve, Frequency domain, Hanning window, SIMPLE algorithm, Thermofluids analysis

Abstract

Noise generated by a cabin outflow valve was predicted using the STAR-CD code, a commercially available thermofluids analysis system developed by the CD-adapco Group. The solver is an implicit finite-volume method, with pressure calculated from a pressure correction equation using the SIMPLE algorithm. The solver used an AMG (algebraic multi-grid) method to solve the linear equations. The turbulence was modeled using a detached eddy simulation (DES) based on a modified Spalarat-Allmaras turbulence model. The pressures were converted to the frequency domain using a Hanning window with a 64 Hz bandwidth, to match the experimental results. The prediction of the noise generated by a cabin outflow valve operating at sub-critical pressure ratio by STAR-CD was very good.

Downloads

Published

2007-09-01

How to Cite

1.
Waller G. Prediction of noise generated by a cabin outflow valve using the STAR-CD code. Canadian Acoustics [Internet]. 2007 Sep. 1 [cited 2021 Dec. 4];35(3):92-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1916

Issue

Section

Proceedings of the Acoustics Week in Canada