Modeling thin layers in material response solvers

Christen E. Setters, Rui Fu, Alexandre Martin

Research output: Contribution to conferencePaperpeer-review


Thermal Protection Systems are a necessary component for atmospheric entry. Most TPS contain thin layers such as ceramic coatings, pore sealers and bonding agents. When modeling TPS, these thin layers are often neglected due to the difference in scale between the TPS (cm) and the thin layer (micrometers). In this study, a volume-averaging flux-conservation method is implemented in the governing equations of a finite volume material response code. The model proposes the addition of a volume and area fraction which utilizes weighted-average between the amount of thin layer and heat shield material in a given cell. A verification case shows that the new model is capable of capturing physics of a thin layer of materials without additional computational costs. The model is also applied to heat conduction and porous flow to show that the volume-averaging flux-conservation model is effective at capturing the physics without adding additional computational cost.

Original languageEnglish
Number of pages16
StatePublished - Jun 17 2019
EventAIAA Aviation 2019 Forum - Dallas, United States
Duration: Jun 17 2019Jun 21 2019


ConferenceAIAA Aviation 2019 Forum
Country/TerritoryUnited States

Bibliographical note

Funding Information:
The work presented here was supported by NASA Kentucky under NASA award NO: NNX15AR69H.

Publisher Copyright:
© 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Aerospace Engineering


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