Challenges to Computational Aerothermodynamic Simulation and Validation for Planetary Entry Vehicle Analysis
作者： Peter A Gnoffo , Bil Kleb , Christopher O Johnston
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摘要: Abstract : Challenges to computational aerothermodynamic (CA) simulation and validation of hypersonic flow over planetary entry vehicles are discussed. Entry, descent, landing (EDL) high mass Mars is a significant driver new requirements. These requirements include large deployable, flexible structures interactions with reaction control system (RCS) retro-thruster jets. Simulation radiation ablation coupled the solver continues be priority for analyses, especially return Earth outer planet missions. Three research areas addressing these challenges emphasized. The first addresses need obtain accurate heating on unstructured tetrahedral grid systems take advantage flexibility in generation adaptation. A multi-dimensional inviscid flux reconstruction algorithm defined that oriented local topology as opposed grid. second coupling flight- ground-based data used provide limited multi-physics simulations. third retro-propulsion criticality adaptation this application. evolution CA become tool innovation EDL requires successful resolution challenges.
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