A new 'quiet' tunnel, the Mach 18 quiet helium tunnel has been developed to support research on transition estimation in hypersonic flows. An existing facility has been modified to provide low-disturbance flow for transition research in a conical nozzle with an exit Mach number of about 18. This paper describes tunnel modifications, unique features, and operating parameters. The tunnel will be used primarily for the validation of boundary-layer stability codes and includes a 1 micron flow filter, a new inlet diffuser, several flow conditioning elements, a conical nozzle, and a boundary-layer bleed system.
Development of a Mach 18 quiet helium tunnel for transition research
AIAA, Aerospace Ground Testing Conference ; 1992 ; Nashville, TN, United States
01.07.1992
Aufsatz (Konferenz)
Keine Angabe
Englisch
INSTABILITY AND TRANSITION RESEARCH IN A MACH-6 QUIET TUNNEL
British Library Conference Proceedings | 2011
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