Fully Coupled Material Response Solver using Radiative Transfer for Thermal Protection Systems

Prathamesh R. Sirmalla, Robert Chiodi, Marco Panesi, Daniel J. Bodony

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


This work presents an accurate model for the description of the radiative transfer processes that take place in reacting porous media subjected to high temperatures. In it, we solve the transport equation for radiation leveraging a low order spherical harmonic expansion, P1, to describe the angular dependence of the radiative intensity. This radiation model is tightly coupled with CHyPS, a material response solver developed within the CHESS that can simulate the heat and mass transfer in porous materials. CHyPS solves volume-averaged governing conservation equations for solid mass, gas mass, species (finite-rate chemistry), momentum, and energy. Model predictions are compared against several test cases published in literature demonstrating excellent agreement in the predictions. Finally, we present a demonstrative simulation of the heat shield used for the Dragonfly mission’s entry capsule.

Original languageEnglish (US)
Title of host publicationAIAA AVIATION 2022 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624106354
StatePublished - 2022
EventAIAA AVIATION 2022 Forum - Chicago, United States
Duration: Jun 27 2022Jul 1 2022

Publication series

NameAIAA AVIATION 2022 Forum


ConferenceAIAA AVIATION 2022 Forum
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Aerospace Engineering


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