Experiments were conducted using a hypersonic arc-jet facility to investigate spallation of solid particles ejected off of an ablative thermal protection system material. To do this, samples with different geometries were exposed to high enthalpy environments with different gas concentrations at the same nominal heat flux. Particles ejected from the samples were quantified and tracked using particle tracking velocimetery and the results analyzed to assess the impact of surface shear and oxidation on the rate of spallation.
|State||Published - 2020|
|Event||AIAA Scitech Forum, 2020 - Orlando, United States|
Duration: Jan 6 2020 → Jan 10 2020
|Conference||AIAA Scitech Forum, 2020|
|Period||1/6/20 → 1/10/20|
Bibliographical noteFunding Information:
Financial support for this work was provided by NASA Kentucky under NASA award no. NNX15AR69H, as well as by NASA Kentucky EPSCoR Award no. NNX13AN04A. Additional support was generously provided by the Entry Systems Modeling Project, through M.J. Wright at NASA Ames. The authors are immensely grateful to him. They also would like to thank J. Chavez-Garcia at NASA Ames, as well as S. Splinter, J.G. Gragg, and W. Geouge at NASA Langley for their technical assistance.
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ASJC Scopus subject areas
- Aerospace Engineering