When a carbon-carbon heatshield is exposed to atomic oxygen in a high temperature environment the surface experiences ablation primarily through oxidation. this oxidation process ejects new species into the boundary layer and may affect the heat flux to the surface of the vehichle. We explore the effects that surface oxidation chemistry has on heat flux. A surface chemistry solver is implemented into KATS-CFD. The implementation is tested against a two-reaction model. The Muri oxidation model is applied in a test to observe the level of influence varying surface site concentration has on heat flux results. In addition, We look at how surface pressure also has an influence on the reaction rates in part due to the surface mass balancing.
|Number of pages||12|
|State||Published - Jan 11 2021|
|Event||AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online|
Duration: Jan 11 2021 → Jan 15 2021
|Conference||AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021|
|Period||1/11/21 → 1/15/21|
Bibliographical noteFunding Information:
This work is supported by the US Air Force of Scientific Research through AFOSR Grant FA9550-18-1-0261.
© 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All Rights Reserved.
ASJC Scopus subject areas
- Aerospace Engineering