Accession Number:

AD0432473

Title:

MEASUREMENTS OF AERODYNAMIC AND RADIATIVE HEATING AT SUPER-ORBITAL VELOCITIES,

Descriptive Note:

Corporate Author:

OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS AERODYNAMIC LAB

Personal Author(s):

Report Date:

1964-01-15

Pagination or Media Count:

51.0

Abstract:

Using an arc driven shock tube facility, measurements of aerodynamic and radiative stagnation point heating have been carried out at simulated flight velocities ranging from 20,000 to 40,000 ft per sec. The measurements of aerodynamic heating were performed using standard calorimeter techniques, while the radiative measurements were carried out through the use of a thin film radiation heat transfer gage developed at The Ohio State University Aerodynamic Laboratory. The present results indicate no significant ionization effects on aerodynamic heating and indicate that the Lees approximate equation for stagnation point heat transfer can be used for engineering purposes for flight velocities up to 40,000 feet per sec. The radiative heat transfer measurements, though of a preliminary nature, indicate that present estimates of radiative emission in the flight velocity range of 34,000 to 40,000 ft. per sec may be as much a factor of 3 - 4 too high. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE