Review of Simulation Methods of Hypersonic Aerothermoelastic Problems

Due to their dangerous and complex features, aerothermoelastic problems should be accurately analyzed in hypersonic vehicle designing. Meanwhile, aerothermoelastic analysis should be efficient enough for iterative designing process. Based on the dual requirement, to begin with, simulation methods of related sub-disciplines such as aerodynamics, aerodynamic heat, structural heat-conduction, structural dynamics were reviewed in terms of engineering methods, numerical methods and reduced-order-model methods. Among these methods, reduced order modeling is expected to solve the contradiction between efficiency and accuracy, which is the focus of the review. Then, frameworks of multi-field coupling were reviewed in terms of temporal and spatial coupling strategies. Spatial coupling strategies include one-way and two-way coupling, and temporal coupling strategies include full-coupling, loose-coupling and time-frequency domain coupling. In conclusion, multi-field coupling strategy based on reduced order model was proposed, and future work of aerothermoelastic analysis methods was finally discussed.