A Concept for Transition Mapping on a 10 Deg-Cone in the National Transonic Facility Using Flow-Pressure Variation

By National Aeronautics and Space Administration

A conceptual study was performed to define a technique for mapping the boundary-layer transition on a 10 deg-Cone in the National Transonic Facility (NTF) as a means of determining this cryogenic-tunnel suitability for laminar flow testing. A major challenge was to devise a test matrix using a fixed surface pitot probe, varying the flow pressure to pr oduce the actual Reynolds numbers for boundary-layer transition. This constraint resulted from a lack of a suitable and reliable electrical motor to drive the probe along the cone's surface under cryogenic flow conditions. The initial phase of this research was performed by the author in collaboration with the late Dr. William B. Igoe from the Aerodynamics Division at NASA Langley Research Center. His comments made during the drafting of this document were invaluable and a source of inspiration. Gartenberg, Ehud Unspecified Center NAS1-19858; RTOP 505-59-54-01...

• Format: Paperback
• Language: English
• ISBN: 172936005X
• ISBN13: 9781729360057
• Release Date: January 1
• Publisher: Independently Published
• Length: 52 Pages
• Weight: 0.32 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"