Simulation of pyrolysis gas within a thermal protection System

Alexandre Martin, Iain D. Boyd

Research output: Contribution to conferencePaperpeer-review

45 Scopus citations


As the first part of an ongoing study on heat flux and abation on hypersonic vehicles, a material response implicit solver with solid ablation and pyrolysis is developed. As a first step, code-to-code validations and comparisons with experimental data are performed. A study of the various effects of pyrolysis gas within an ablator is also performed; using realistic re-entry conditions on a generic carbon-phenolic ablator, conditions for non-Darcian behavior are modeled, suggesting the use of Forchheimer's Law to calculate gas velocity. The necessary conditions required for kinetic energy to be relevant are also highlighted. The code is then coupled to LeMANS, a CFD solver for the simulation of weakly ionized hypersonic flows in thermo-chemical non-equilibrium developed at The University of Michigan. A summary of the coupling validation is presented. All results show good agreement with published numerical results or analytical solutions.

Original languageEnglish
Number of pages20
StatePublished - Jun 23 2008
Event40th AIAA Thermophysics Conference - Seattle, United States
Duration: Jun 23 2008Jun 26 2008


Conference40th AIAA Thermophysics Conference
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Condensed Matter Physics
  • Aerospace Engineering


Dive into the research topics of 'Simulation of pyrolysis gas within a thermal protection System'. Together they form a unique fingerprint.

Cite this