Novel pressure-sensitive paint for cryogenic and unsteady wind-tunnel testing

Keisuke Asai, Yutaka Amao, Yoshimi Iijima, Ichiro Okura, Hiroyuki Nishide

研究成果: Article

42 引用 (Scopus)

抄録

A novel pressure-sensitive paint (PSP) formulation suitable for use in cryogenic and unsteady wind-tunnel testing has been developed. This new PSP uses poly [1-(trimethylsilyl)-1-propyne] [poly(TMSP)] as a binder. Poly(TMSP) is a glassy polymer having extremely high gas permeability. Unlike the conventional polymer-based paints, PSP based on poly(TMSP) maintains oxygen sensitivity even at cryogenic temperatures and exhibits fast response time. This paint is sprayable on any model surface including stainless steel and ceramics. These capabilities allow us to apply this PSP to a cryogenic wind tunnel and a short-duration shock tunnel. To demonstrate the capability of poly(TMSP)-PSP for pressure measurements in a cryogenic wind tunnel, a circular-arc bump model and a delta wing model were tested in the National Aerospace Laboratory 0.1-m Cryogenic Wind Tunnel at 100 K. It has been verified that poly(TMSP)-PSP can provide high S/N pressure distribution data at high O2 concentration. A comparison of the measured intensity data with the pressure tap measurements has suggested that the in situ calibration can be used to obtain quantitative pressure data. It was also demonstrated that poly(TMSP)-PSP could visualize the complex flowfield on a stainless steel delta wing, including primary and secondary separation vortices and their breakdown.

元の言語English
ページ(範囲)109-115
ページ数7
ジャーナルJournal of Thermophysics and Heat Transfer
16
発行部数1
出版物ステータスPublished - 2002 1

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pressure sensitive paints
wind tunnels
Paint
Cryogenics
Wind tunnels
cryogenics
cryogenic wind tunnels
Testing
delta wings
paints
Stainless Steel
stainless steels
shock tunnels
vortex breakdown
Polymers
Stainless steel
taps
polymers
cryogenic temperature
pressure measurement

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

これを引用

Novel pressure-sensitive paint for cryogenic and unsteady wind-tunnel testing. / Asai, Keisuke; Amao, Yutaka; Iijima, Yoshimi; Okura, Ichiro; Nishide, Hiroyuki.

:: Journal of Thermophysics and Heat Transfer, 巻 16, 番号 1, 01.2002, p. 109-115.

研究成果: Article

Asai, Keisuke ; Amao, Yutaka ; Iijima, Yoshimi ; Okura, Ichiro ; Nishide, Hiroyuki. / Novel pressure-sensitive paint for cryogenic and unsteady wind-tunnel testing. :: Journal of Thermophysics and Heat Transfer. 2002 ; 巻 16, 番号 1. pp. 109-115.
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