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Multiphysics Mesoscale Modeling of Ablative Thermal Protection Systems | Marina Sessim TMS 2021

Speaker: Marina Sessim Affiliation: Department of Materials Science and Engineering, University of Florida Title: Multiphysics Mesoscale Modeling of Ablative Thermal Protection Systems Conference: TMS 2021 Annual Meeting Symposium: Thermal Property Characterization, Modeling, and Theory in Extreme Environments Description: The thermal protection system (TPS) of a spacecraft has the essential role of insulating the payload during atmospheric entry. The TPS of interest in this project is the Phenolic Impregnated Carbon Ablator (PICA), composed of carbon fibers dispersed in phenolic resin. In this presentation, Marina Sessim describes their research efforts to develop a multiphysics ablation model that aims to better understand the impact of the PICA microstructure and thermophysical properties on the overall thermal performance of the TPS. This model is developed using the Multiphysics Object-Oriented Simulation Environment (MOOSE) framework, an open-source finite element framework developed by the Idaho National Laboratory (https://mooseframework.inl.gov/). The scope of this presentation is to introduce the ablation model, which employs the phase-field method coupled with heat conduction and chemical reaction kinetics. We demonstrate the model capabilities by predicting the thermal performance of single carbon-fiber and multiple fibers under high temperatures. For more information about our research, visit the Tonks Research Group website:https://tonks.mse.ufl.edu/