Full-coverage film cooling. I - Comparison of heat transfer data for three injection anglesWind tunnel experiments were carried out at Stanford between 1971 and 1977 to study the heat transfer characteristics of full-coverage film cooled surfaces with three geometries; normal-, 30 deg slant-, and 30 deg x 45 deg compound-angled injection. A flat full-coverage section and downstream recovery section comprised the heat transfer system. The experimental objectives were to determine, for each geometry, the effects on surface heat flux of injection blowing ratio, injection temperature ratio, and upstream initial conditions. Spanwise-averaged Stanton numbers were measured for blowing ratios from 0 to 1.3, and for two values of injection temperature at each blowing ratio. The heat transfer coefficient was defined on the basis of a mainstream-to-wall temperature difference. Initial momentum and enthalpy thickness Reynolds numbers were varied from 500 to about 3000.
Document ID
19800058006
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Crawford, M. E. (MIT Cambridge, Mass., United States)
Kays, W. M. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Moffat, R. J. (Stanford University Stanford, Calif., United States)
Date Acquired
August 10, 2013
Publication Date
March 1, 1980
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
ASME PAPER 80-GT-43
Meeting Information
Meeting: Gas Turbine Conference and Products Show
Location: New Orleans, LA
Start Date: March 10, 1980
End Date: March 13, 1980
Sponsors: American Society of Mechanical Engineers