Simulation of crack growth due to carbon oxidation in high-temperature gas environments

Evgeni Titov, Jiaqiang Zhong, Deborah A. Levin, Donald J. Picetti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High temperature gas dynamic computational techniques are employed to study microflows in expanding crack channels due to the oxidation of the channel carbon walls. Wall regression rates for three reinforced carbon-carbon (RCC) samples that were tested in a high enthalpy arcjet environment were modeled. The test geometries and flow conditions span flow regimes from the transitional through the continuum, but the same mechanism for wall material loss, atomic oxygen reaction with bare carbon, was utilized in all three cases. The predicted wall degeneration rates were found to agree with arcjet measurements and the general specimen shape change was predicted. Local gas flowfield results were found to affect the oxidation rate in a manner that cannot be predicted by previous mass loss correlations. The method holds promise for future modeling of materials gas-dynamic interactions for hypersonic flight.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 18th AIAA Computational Fluid Dynamics Conference
Pages1876-1913
Number of pages38
StatePublished - Nov 7 2007
Externally publishedYes
Event18th AIAA Computational Fluid Dynamics Conference - Miami, FL, United States
Duration: Jun 25 2007Jun 28 2007

Publication series

NameCollection of Technical Papers - 18th AIAA Computational Fluid Dynamics Conference
Volume2

Other

Other18th AIAA Computational Fluid Dynamics Conference
Country/TerritoryUnited States
CityMiami, FL
Period6/25/076/28/07

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Automotive Engineering

Fingerprint

Dive into the research topics of 'Simulation of crack growth due to carbon oxidation in high-temperature gas environments'. Together they form a unique fingerprint.

Cite this