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Type of Document	Dissertation
Author	Hartwig, Frederic William
URN	etd-07132004-161800
Persistent URL	http://resolver.caltech.edu/CaltechETD:etd-07132004-161800
Title	Development and application of a technique for steady state aerodynamic heat transfer measurements
Degree	PhD
Option	Aeronautics
Advisory Committee	Advisor Name Title Lester Lees Committee Chair
Keywords	none
Date of Defense	1957-01-01
Availability	unrestricted
Abstract A technique was developed for measuring steady state heat transfer on a hemisphere cylinder and the results are compared with theory. The instrumentation consisted of a miniaturized thermopile of silver-constantan thermocouples approximately 1/8" x 1/16" x 1/100". The repeatability of readings with this device was found to be excellent. These heat measuring devices, or heat meters, were installed in both a ceramic hemisphere cylinder and in a similar metal one. There were obtained three different heat flow rates at each of six different combinations of tunnel pressure and temperature. The results compared very well with a theory developed by Lester Lees based upon the assumption of local similarity.
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