Publication Date:
2019-07-13
Description:
The spallation phenomenon was studied through numerical analysis using a coupled Lagrangian particle tracking code and a hypersonic aerothermodynamics computational fluid dynamics solver. The results show that carbon emission from spalled particles results in a significant modification of the gas composition of the post shock layer. Preliminary results from a test-campaign at the NASA Langley HYMETS facility are presented. Using an automated image processing of high-speed images, two-dimensional velocity vectors of the spalled particles were calculated. In a 30 second test at 100 W/cm2 of cold-wall heat-flux, more than 1300 particles were detected, with an average velocity of 102 m/s, and most frequent observed velocity of 60 m/s.
Keywords:
Instrumentation and Photography
Type:
NF1676L-20135
,
European Symposium on Aerothermodynamics for Space Vehicles; Mar 02, 2015 - Mar 06, 2015; Lisbon; Portugal
Format:
application/pdf
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