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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Thermal Property Characterization, Modeling, and Theory in Extreme Environments
Presentation Title Multiphysics Mesoscale Modeling of Ablative Thermal Protection Systems
Author(s) Marina Sessim, Linuyan Shi, Simon Phillpot, Michael Tonks
On-Site Speaker (Planned) Marina Sessim
Abstract Scope The Phenolic Impregnated Carbon Ablator (PICA) is NASA’s heritage Thermal Protection System (TPS) material for atmospheric entry of space capsules. It has been successfully tested in previous missions such as Stardust, and it is a potential candidate for future deep-space missions. PICA is composed of carbon fibers embedded in a phenolic resin, which is transformed into char upon ablation. We are developing a multiphysics mesoscale ablation model to better understand the impact of the PICA microstructure on its thermal performance. This model is developed using the Multiphysics Object-Oriented Simulation Environment (MOOSE) framework, a C++ finite element framework developed by the Idaho National Laboratory. 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 a single carbon fiber and multiple fibers under high temperatures.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

First-principles modeling of High Temperature Irradiation Resistant Thermocouple (HTIR-TC) Performance and Oxidation
A Thermodynamically-consistent Model for Heat Transport in Heterogeneous Solids
An Experimentally Validated Mesoscale Model for the Effective Thermal Conductivity of U-Zr Fuels
Atmosphere Controlled Thermogravimetric Analysis as a tool to Screen, Test and Qualify Advanced Fuels under Extreme Conditions
Connection Between Thermal Conductivity Degradation and Microstructural Changes in Graphite Due to Neutron Irradiation
Defect density and annealing kinetics estimation using thermal diffusivity measurements from Transient Grating Spectroscopy
Energy Balance Investigation of Close-coupled Optimized-pressure Gas Atomization Pour-tube Design Geometry to Prevent Melt Freeze-off
Enhanced thermal conductivity for sol-gel derived fuel candidates
From crystalline to amorphous materials: mechanisms for thermal conductivity reduction
Ion-irradiation-induced structural disorder and thermal conductivity changes of intermetallic compounds.
Measurement of density, thermal expansion, and viscosity of volatile molten salts using X-ray radiography
Mesoscale Modeling of the Effective Thermal Conductivity of a UO2-Mo Composite Nuclear Fuel
Multiphysics Mesoscale Modeling of Ablative Thermal Protection Systems
Non-magnetic Kondo effect in delta-UZr2
Oxidation Resistance Impact of Niobium and Zirconium Additions to U3Si2
Performance of UO2 reactor fuel with high thermal conductivity additives
Phase-dictated thermal conductivity response in carbon systems exposed to ion irradiation
Phonon transport in ThO2 from neutron scattering and first-principles computation
Theory of non-equilibrium thermal transport at high temperatures from first-principles.
Thermal and mechanical properties of hafnon (HfSiO4), theory and experiments
Thermal behaviors of correlated insulators ThO2 and SmB6
Thermal conductivity and heat transport processes of ion irradiated and laser heated solids
Thermal Conductivity Degradation from Irradiation-induced Microstructural Defects in Single Crystal Thorium Dioxide
Thermal gradient effect on the transport properties of helium and intrinsic defects in tungsten
Thermal Resistance at a Twist Interface: Dislocation Grid and Misorientation Phonon Scattering
Thermal stability of metallic multilayers with triple junctions
Thermal Transport Behavior of U-50Zr at the Mesoscale: Before and After Irradiation
Thermal Transport in Irradiated ThO2: A Combined Experimental and Phonon Level Investigation
Ultra-high lattice thermal conductivity and the effect of pressure in superhard hexagonal BC2N

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