Behaviors of the Laterally Injected Jet in Film Cooling: Measurements of Surface Temperature and Velocity/Temperature Field Within the Jet FREE

[+] Author Affiliations
Shinji Honami, Takaaki Shizawa

Science University of Tokyo, Kagurazaka, Shinjuku, Tokyo, Japan

Atsushi Uchiyama

Mitsubishi Heavy Industries Ltd., Takasago, Hyogo, Japan

Paper No. 92-GT-180, pp. V004T09A002; 7 pages
  • ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration
  • Cologne, Germany, June 1–4, 1992
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7896-5
  • Copyright © 1992 by ASME


This paper presents the behaviors of the injected jet on the flat surface in lateral injection of the film-cooling. Simultaneous velocity and temperature measurements were made by the double-wire probe. The test surface was also covered with an encapsulated temperature-sensitive liquid crystal. The image processing system based on the temperature and hue of the liquid crystal calibration provides the surface temperature distributions. The tests were conducted at three kinds of mass flux ratio of 0.5, 0.85, and 1.2. The laterally injected jet has an asymmetric structure with a large scale of vortex motion in one side caused by the interaction with the primary stream. Asymmetry is promoted with mass flux ratio increased, resulting in low film-cooling effectiveness.

Copyright © 1992 by ASME
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