Open-system pressure sensitive paint for surface pressure measurements in a cryogenic wind tunnel

Hirotaka Sakaue, John P. Sullivan, Yasuhiro Egami, Yoshimi Iijima, Keisuke Asai, Rolf H. Engler, Uwe Beifuss, Frank Döring

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Pyrene-, ruthenium-, and porphyrin-based anodized aluminum pressure sensitive paint (AA-PSP) is developed for surface pressure measurements in a cryogenic wind runnel. These AA-PSPs were calibrated to determine the pressure sensitivity by injecting a small amount of oxygen in the test gas. The mole fraction of oxygen was varied from 4ppm up to 2000ppm. The calibration tests were conducted in the 0.1 m Transonic Cryogenic Wind Tunnel (TCWT) at National Aerospace Laboratory, Japan. Luminophore choice affected the pressure sensitivity with a pyrene-based AA-PSP having the best sensitivity. These AA-PSPs were applied for surface pressure measurements on a 14% thick circular arc-bump model in the TCWT. The results of pyrene- and ruthenium-based AA-PSPs showed good agreement with pressure taps. Pressure sensitivity, signal level, and uniformity of luminescent coating affected the pressure measurements.

Original languageEnglish
Pages (from-to)186-195
Number of pages10
JournalICIASF Record, International Congress on Instrumentation in Aerospace Simulation Facilities
DOIs
Publication statusPublished - 2001 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation
  • Aerospace Engineering
  • Condensed Matter Physics

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