Nonequilibrium Gas-Surface Interactions at High Temperature
Technical Report,15 Mar 2017,14 Mar 2020
THE UNIVERSITY OF MINNESOTA Minneapolis United States
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Hypersonic vehicles generate extreme conditions in the thin shock-layer next to the vehicle surface, in which gas temperatures can exceed 10,000K. This creates high heat fluxes that the thermal protection system TPS must withstand. Additionally, the TPS may lose mass due to chemical reactions with dissociated oxygen present in the high-temperature boundary layer. This process, called ablation, involves coupled gas-phase, gas-surface, and material response physics. Since no single ground experiment can fully reproduce flight conditions, computational fluid dynamics CFD modeling of ablation is crucial for vehicle design and survivability.
- Ceramics, Refractories and Glass