Experimental and Numerical Study of Oscillating Transonic Shock Waves in Ducts
File(s)
Published version
Author(s)
Bruce, PJK
Babinsky, H
Tartinville, B
Hirsch, C
Type
Journal Article
Abstract
An experimental and computational study of a Mach 1.4 transonic shock wave in a parallel-walled duct subject to downstream pressure perturbations in the frequency range of 16–90 Hz has been conducted. The dynamics of unsteady shock motion and aspects of the unsteady transonic shock and turbulent tunnel-floor boundary-layer interaction have been investigated. The numerical computations were performed using an unsteady Reynoldsaveraged Navier–Stokes scheme. It is found that the (experimentally measured) shock dynamics are generally well replicated by the numerical scheme, especially at relatively low (40 Hz) frequencies. However, variations in shock/boundary-layer interaction structure during unsteady shock motion observed in experiments are not always well predicted by the simulation. Significantly, the computations predict variations in shock/boundary-layer interaction size due to shock motion that are much larger and in the opposite sense to the variations observed in experiments. Comparison of the unsteady results from the present study with steady (experimental) results from the literature suggests that unsteady Reynolds-averaged Navier–Stokes code used in the present study models the unsteady shock/boundary-layer interaction behavior as quasi-steady, whereas experiments suggest that it is more genuinely unsteady. Further work developing numerical methods that demonstrate a more realistic sensitivity of shock/ boundary-layer interaction structure to unsteady shock motion is required.
Date Issued
2011-08
Citation
AIAA Journal, 2011, 49 (8), pp.1710-1720
ISSN
0001-1452
Publisher
American Institute of Aeronautics and Astronautics
Start Page
1710
End Page
1720
Journal / Book Title
AIAA Journal
Volume
49
Issue
8
Copyright Statement
Copyright © 2011 by P.J.K.
Bruce. Published by the American Institute of Aeronautics and Astronautics,
Inc., with permission.
Bruce. Published by the American Institute of Aeronautics and Astronautics,
Inc., with permission.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000293679900011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Publication Status
Published
Coverage Spatial
Orlando, FL