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Comparative surface heat transfer measurements in hypervelocity flow

Flaherty, W. and Austin, J. M. (2010) Comparative surface heat transfer measurements in hypervelocity flow. In: 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. AIAA , Reston, VA. ISBN 978-1-60086-959-4.

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Experimental heat flux measurements are made using both thermocouple and thin film gages in high-temperature, hypersonic flows. Thermocouple and thin film gages have individually been extensively used in relatively high and low enthalpy conditions respectively. In this study, three test conditions with varying (intermediate) stagnation enthalpies, Mach and Reynolds numbers are created in an expansion tube facility, and temperature histories and heat flux measurements obtained using the two gage types are directly compared. Gage performance in terms of survivability, response, uncertainty, and signal-to-noise ratio is assessed for both blunt body and flat plate models.

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Additional Information:© 2010 by University of Illinois at Urbana-Champaign. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. AIAA 2010-671. This work was funded through the Air Force Office of Scientific Research FA9550-08-1-0172 with Dr. John Schmisseur as program manager. We are grateful to the Caltech T5 group, Prof. Hans Hornung, Bahram Valiferdowski, Drs Eric Marineau, Adam Rasheed, and Ivett Leyva for their valuable help with thermocouples and to Lt. Col. Prof. Russell Adelgren for useful discussions on thin film gages. The authors would like to thank Ryan Fontaine, Manu Sharma, and Andy Swantek for their help with this work.
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Air Force Office of Scientific Research (AFOSR)FA9550-08-1-0172
Record Number:CaltechAUTHORS:20141006-082211395
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:50197
Deposited By: Tony Diaz
Deposited On:06 Oct 2014 23:52
Last Modified:03 Oct 2019 07:21

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