Author ORCID Identifier
Date Available
11-19-2021
Year of Publication
2021
Degree Name
Master of Science in Mechanical Engineering (MSME)
Document Type
Master's Thesis
College
Engineering
Department/School/Program
Mechanical Engineering
First Advisor
Dr. Alexandre Martin
Abstract
Thermal Protection Systems (TPS) are a necessary component for atmospheric entry. Most TPS contain thin layers of various materials 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 (centimeters) and the thin layers (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 coefficient which utilizes a weighted-averaging 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 layers 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.
Digital Object Identifier (DOI)
https://doi.org/10.13023/etd.2021.404
Funding Information
The material is based upon work supported by National Aeronautics and Space Agency Kentucky under National Aeronautics and Space Agency award No: NNX15AR69H.
Recommended Citation
Setters, Christen, "Modeling Thin Layers in Material Response Solvers" (2021). Theses and Dissertations--Mechanical Engineering. 183.
https://uknowledge.uky.edu/me_etds/183
