Accession Number:

AD0857303

Title:

Evaluation of the Effect of Free Stream Turbulence on the Heat Transfer to Turbine Airfoil.

Descriptive Note:

Technical rept., 3 Sep 68-31 May 69,

Corporate Author:

PRATT AND WHITNEY AIRCRAFT GROUP EAST HARTFORD CT

Personal Author(s):

• Lander, Richard D.

Report Date:

1969-09-01

Pagination or Media Count:

199.0

Abstract:

This program was conducted to evaluate the effects of gas stream turbulence, originating in a modern turbojet engine-type burner, on the rate of heat transfer to the leading edge and suction surfaces of two different turbine airfoils. While meeting this objective, the procedures that are necessary to calibrate and utilize uncooled hot film anemometers to measure free stream turbulence in high pressure-high temperature gas streams were studied. In addition, an investigation was made of the feasibility of using cooled hot film anemometer probes, designed to operate in extremely high temperature environments, to measure free stream turbulence in modern turbojet burner discharge environments. Author

Descriptors:

• *TURBOJET ENGINES
• *HEAT TRANSFER
• TURBULENCE
• AIRFOILS
• TURBINE BLADES
• CASCADE STRUCTURES
• HEAT TRANSFER COEFFICIENTS
• COMBUSTION CHAMBERS
• ANEMOMETERS
• FEASIBILITY STUDIES

Subject Categories:

• Fluid Mechanics
• Thermodynamics
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE