Techniques used in the F-14 variable-sweep transition flight experimentThis paper discusses and evaluates the test measurement techniques used to determine the laminar-to-turbulent boundary-layer transition location in the F-14 variable-sweep transition flight experiment (VSTFE). The main objective of the VSTFE was to determine the effects of wing sweep on the laminar-to-turbulent transition location at conditions representative of transport aircraft. Four methods were used to determine the transition location: (1) a hot-film anemometer system, (2) two boundary-layer rakes, (3) surface pitot tubes, and (4) liquid crystals for flow visualization. Of the four methods, the hot-film anemometer system was the most reliable indicator of transition.
Document ID
19880051535
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Trujillo Anderson, Bianca (NASA Flight Research Center Edwards, CA, United States)
Meyer, Robert R., Jr. (NASA Flight Research Center Edwards, CA, United States)
Chiles, Harry R. (NASA Flight Research Center Edwards, CA, United States)