In the early days of space exploration, the development of thermal protection systems for reentry vehicles was mainly based on an experimental approach, both for design of materials and for testing. The concept of ablative material was discovered during this period of trial and error, resulting in the ideal matter to isolate and protect reentry rockets and space vehicles from the hyperthermal effects of the environment. In Ablative Thermal Protection Systems Modeling, Georges Duffa explains the history of ablative materials and looks into the future of its design process. The objective of this book is to develop physical skills in the key scientific areas applied to the modeling of thermal protection.Topics DiscussedModeling based on small physics scalesThermodynamics and transport propertiesGas kineticsRadiative transferPhysical and chemical reactions (homogeneous and heterogeneous)Fluid mechanics and effects of turbulence on physical matterPreviously Unpublished InformationTransport properties approximationEquilibrium thermodynamics in variable elemental composition mediumAblation of glassy materialsRoughness setup and effectsRadiative transfer in materials