Publication Date:
2019-07-13
Description:
This paper describes the aerothermal environment in the afterbody region of a blunt entry body. Recent ground-based experiments and computational predictions of the afterbody flow structure and radiation are presented. The similarity between the flowfield structures observed in the ground-based experiments and that obtained by calculation is encouraging. Approximate calculations of the radiative heating rate to the base are presented. Many of the phenomena associated with the expanding flow at the corner and the formation of the wake neck, however, are not well understood and require further study. A flight experiment is described that would use spectral and total measurements of the wake radiation as a nonintrusive diagnostic method to provide insight into the thermodynamic state of the wake gas.
Keywords:
FLUID MECHANICS AND HEAT TRANSFER
Type:
AIAA PAPER 91-1408
,
Journal of Spacecraft and Rockets (ISSN 0022-4650); 29; 6; p. 765-772.
Format:
text
