This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Study of the Pulsations in a 3/4 Open Jet Wind Tunnel
Technical Paper
2002-01-0251
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Some open jet wind tunnels have been operating under limitations due to a phenomenon that causes large pressure fluctuations at some speeds. The matter has been studied over several years and no configuration has been found to eliminate these fluctuations without introducing new noise sources.
This paper describes test results from a sub-scale facility that demonstrates this phenomenon. The facility is then tested with a configuration that does not exhibit these phenomena over a wide range of speeds. It is possible to retrofit this configuration in existing facilities.
(The modification is the subject of a pending patent application.)
Recommended Content
Authors
Topic
Citation
Lacey, J., "A Study of the Pulsations in a 3/4 Open Jet Wind Tunnel," SAE Technical Paper 2002-01-0251, 2002, https://doi.org/10.4271/2002-01-0251.Also In
References
- Hucho, Wolf-Heinrich “Aerodynamics of Road Vehicles Fourth SAE International 1998
- Holthusen, H. Kooi, J.W. “Model and Full Scale Investigations of the Low Frequency Vibration Phenomena of the DNW Open Jet” AGARD CP-585 1996
- Arnette, Stephen A. Buchanan, Tony D. “On Low-Frequency Pressure Pulsations and Static Pressure Distribution in Open Jet Automotive Wind Tunnels” SAE 1999-01-0813
- Wickern, G. vonHeesen, W. Wallman, S. “Wind Tunnel Pulsations and their Active Suppression” SAE 2000-01-0869 March 2000
- Ahmed, Syed R. “A survey of Automobile Aeroacoustic Activities in Germany” SAE 950623
- Ahuja, K. K. “Aeroacoustic Performance of Open-Jet Wind Tunnels With Particular Reference To Jet/Collector Interactions” GTRI Project A-9730 1994
- Holthusen, H. Private Communication November 2001