Transition detection methods in a pitch-sweep test by means of tsp using lifetime and intensity measurements

Daisuke Yorita, Jonathan Lemarechal, Christian Klein, Koji Fujita, Hiroki Nagai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)


A combination of carbon nanotube and Temperature Sensitive Paint (cntTSP) has a potential to visualize dynamic movement of the boundary-layer transition on a model surface. One wide area of application for the use of cntTSP is the continuous model pitch-sweep tests, which are desired in order to improve the data productivity of the wind tunnel. In this paper, the applicability of cntTSP to a continuous moving model (pitch-sweep test) is investigated in a low-speed wind tunnel with a simplified airplane model wing. Two TSP measurement methods, the intensity and single-shot lifetime method, and two data reduction methods for the transition detection, the maximum temperature slope method and the differential thermography methods, were examined. All methods performed in this work successfully detected the moving boundary-layer transition on the pitch-sweep model and results matched well. The advantages and technical difficulties of each method are also discussed.

Original languageEnglish
Title of host publicationAIAA Scitech 2020 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105951
Publication statusPublished - 2020
EventAIAA Scitech Forum, 2020 - Orlando, United States
Duration: 2020 Jan 62020 Jan 10

Publication series

NameAIAA Scitech 2020 Forum
Volume1 PartF


ConferenceAIAA Scitech Forum, 2020
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering


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