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- Publisher
- Springer Journals
- Copyright
- Copyright © 2003 by Springer-Verlag
- Subject
- Engineering
- ISSN
- 0723-4864
- eISSN
- 1432-1114
- DOI
- 10.1007/s00348-003-0623-z
- Publisher site
- See Article on Publisher Site
Abstract
The free-stream disturbance field in a short-duration supersonic wind tunnel is investigated at a nominal Mach number of Ma=2.54. A specially designed constant-temperature anemometer is used to be able to draw a complete fluctuation diagram within one wind tunnel run (testing time: 120 ms). It is shown that the disturbance field is dominated by acoustic waves radiated from the turbulent boundary layer on the nozzle and the sidewalls, like in conventional supersonic wind tunnels. The acoustic field appears to be composed of highly localized shivering Mach waves superimposed on a background of eddy Mach waves.
Journal
Experiments in Fluids – Springer Journals
Published: Aug 30, 2003