Effectiveness Measurements for a Cooling Film Disrupted by a Single Jet FREE

[+] Author Affiliations
B. L. Button

Coventry (Lanchester) Polytechnic, Coventry, UK

Paper No. 83-GT-250, pp. V004T09A019; 7 pages
  • ASME 1983 International Gas Turbine Conference and Exhibit
  • Volume 4: Heat Transfer; Electric Power
  • Phoenix, Arizona, USA, March 27–31, 1983
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7954-2
  • Copyright © 1983 by ASME


Experimental measurements of the effectiveness downstream of a slot airflow with the jet airflow normal to the wall have been performed in a wind tunnel. The separate and combined contributions of the slot and jet airflows to the effectiveness are established for a range of airflow conditions relevant to gas turbine combustors. Generally, the jet reduces the effectiveness. The major interactions between the airflows occur just downstream of the jet. Visualisation studies using tufts and velocity and turbulence intensity profiles are reported.

Copyright © 1983 by ASME
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