Total heat transfer measurements on a flight investigation of reentry environment model

Capra, Bianca R. and Morgan, Richard G. (2013) Total heat transfer measurements on a flight investigation of reentry environment model. Journal of Spacecraft and Rockets, 50 3: 494-503. doi:10.2514/1.A32333


Author Capra, Bianca R.
Morgan, Richard G.
Title Total heat transfer measurements on a flight investigation of reentry environment model
Journal name Journal of Spacecraft and Rockets   Check publisher's open access policy
ISSN 0022-4650
1533-6794
Publication date 2013-05
Year available 2013
Sub-type Article (original research)
DOI 10.2514/1.A32333
Volume 50
Issue 3
Start page 494
End page 503
Total pages 10
Place of publication Reston, VA United States
Publisher American Institute of Aeronautics and Astronautics
Collection year 2014
Language eng
Formatted abstract
Stagnation-point total heat transfer was measured on a 1:27.7 model of the Flight Investigation of Reentry Environment II flight vehicle. Experiments were performed in the X1 expansion tube at an equivalent flight velocity and static enthalpy of 11 km/s and 12.7 MJ/kg, respectively. Conditions were chosen to replicate the flight condition at a total flight time of 1639.5 s, where radiation contributed an estimated 17-36% of the total heat transfer. This contribution is theorized to reduce to <2% in the scaled experiments, and the heating environment on the test model was expected to be dominated by convection. A correlation between reported flight heating rates and expected experimental heating, referred to as the reduced flight value, was developed to predict the level of heating expected on the test model. At the given flow conditions, the reduced flight value was calculated to be 150 MW/m2. Average stagnation-point total heat transfer was measured to be 140 ± 7% W/m2, showing good agreement with the predicted value. Experimentally measured heat transfer was found to have good agreement of between 5 and 15% with a number of convective heating correlations, confirming that convection dominates the tunnel heating environment, and that useful experimental measurements could be made in weakly coupled radiating flow
Keyword Expansion Tube
Flow
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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