0
RESEARCH PAPERS

The Effectiveness of Film Cooling With Three-Dimensional Slot Geometries

[+] Author and Article Information
M. N. R. Nina

Department of Mechanical Engineering, Instituto Superior Técnico, Lisbon, Portugal

J. H. Whitelaw

Department of Mechanical Engineering, Imperial College of Science and Technology, London, England

J. Eng. Power 93(4), 425-430 (Oct 01, 1971) (6 pages) doi:10.1115/1.3445602 History: Received December 21, 1970; Online July 14, 2010

Abstract

The paper describes measurements of adiabatic wall temperature downstream of discrete hole injection slots for a range of parameters relevant to gas turbine practice. The influence of open-area-ratio, slot-lip-length and slot-lip-thickness is determined for tangential holes and a range of mass velocity ratios, 0.3 < m < 2.0, and downstream distances up to 40 equivalent slot heights; similar measurements are reported downstream of three-dimensional splash cooling geometries. In all, 13 different three-dimensional configurations are investigated and permit conclusions to be drawn as to the significance of the parameters investigated. The measurements clearly demonstrate the need for a thin and long slot lip and for a large value of open area ratio.

Copyright © 1971 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In