Multidimensional modeling of pyrolysis gas transport inside charring ablative materials

Haoyue Weng, Alexandre Martin

Research output: Contribution to journalArticlepeer-review

74 Scopus citations


The behavior of pyrolysis gas transport in arcjet test samples is numerically studied. The simulation of the pyrolysis gas flow inside a porous material is presented, using two different geometries. The effects of allowing the gas to flow out of the sidewall are especially highlighted. Results show that the flow inside the test article is complex, and that the zero-dimensional or one-dimensional assumption made in most material response codes are not necessarily valid for certain geometries. The importance of three-dimensionality for modeling an ablative test article is addressed.

Original languageEnglish
Pages (from-to)583-597
Number of pages15
JournalJournal of Thermophysics and Heat Transfer
Issue number4
StatePublished - Oct 1 2014

Bibliographical note

Funding Information:
Financial support for this work was provided by NASA SBIR Phase-2 Award NNX10CC53P, by NASA Kentucky EPSCoR award NNX10AV39A and by NASA EPSCoR RA award NNX13AN04A. The authors would like to thank Huaibao Zhang, Francesco Panerai, and Sean Bailey at the University of Kentucky, as well as Adam Amar at NASA Johnson Space Center, Emre Sozer and Nagi N. Mansour at NASA Ames Research Center, Tom van Eekelen at LMS International, and Jean Lachaud at the University of California, Santa Cruz, for several useful discussions.

Publisher Copyright:
© 2014 by Haoyue Weng andAlexandre Martin.

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Space and Planetary Science


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