In-flight visualization of shock wave on a jet aircraft wing using lifetime-based pressure-sensitive paint technique

Yosuke Sugioka, Hitomi Sato, Kazuyuki Nakakita, Tsutomu Nakajima, Taku Nonomura, Keisuke Asai

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

2 Citations (Scopus)

Abstract

In-flight pressure-sensitive paint (PSP) measurement was performed to visualize the location of a shock wave on an aircraft wing. PSP films were applied to the main wing surface of the Japan Aerospace Exploration Agency (JAXA) Flying-Test-Bed “Hisho”. The aircraft flew at both subsonic and transonic speeds, and the flight altitude was varied between 25,000 feet and 45,000 feet. PSP image acquisition was conducted under trim flight conditions. A PSP lifetime imaging system was developed and loaded onto the cabin of the experimental aircraft. The pulse width of the excitation light source and the image acquisition timing for the two-gate method were determined from the luminescent response of PSP obtained in a calibration chamber. Lifetime images obtained in flight showed that the lifetime-based PSP technique is capable of visualizing shock locations on the actual wing. Shock-foot locations could be clearly observed as the steep change in the gate intensity ratio. At transonic flight speeds, the shock foot moved between the chordwise station of 15-30% depending on flight Mach number and angle of attack.

Original languageEnglish
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
DOIs
Publication statusPublished - 2019 Jan 1
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: 2019 Jan 72019 Jan 11

Publication series

NameAIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
Country/TerritoryUnited States
CitySan Diego
Period19/1/719/1/11

ASJC Scopus subject areas

  • Aerospace Engineering

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