Accession Number:

AD0445121

Title:

HIGH TEMPERATURE TURBULENT HEAT-TRANSFER MEASUREMENTS,

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

Report Date:

1964-01-20

Pagination or Media Count:

10.0

Abstract:

Turbulent heat-transfer rates through a highly cooled boundary layer have been investigated experimentally by testing in the throat region of a reflected shock tunnel. Local heat-transfer measurements were made in a constant diameter pipe, simulating a flat plate, with extreme free-stream conditions. Unit Reynolds number, on the order of 3 x 10 to the 7th powerft, stagnation enthalpies approaching 8,000 Btulb, free-stream temp up to 8,000 K, and free-stream pressure of about 100 atm were generated by the shock tunnel for these experiments. Heat-transfer rates in the neighborhood of 50,000 Btusq ft sec were measured by means of a ring-type calorimeter heat-transfer gage developed at the Naval Ordnance Laboratory. Experimental results are compared with some existing empirical methods for predicting convective heat-transfer coefficients. It is concluded that the experimental data substantiate some of the empirical predictions for the given test conditions. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE