**6. Conclusions**

By modeling and analysis of hypersonic multi-physics coupling problem, the mathematical and physical description of the various coupling model is established, and then the corresponding coupling analysis strategy is proposed. In the framework of coupling analysis strategy, an integrated analysis program platform HyCCD by integrating hypersonic aerodynamic numerical simulation program and general finite element thermal analysis software is developed to study the relevant problem of hypersonic multi-physics coupling problem. Through these representative studies, the key novel contributions are achieved as follows: (1) studying the coupling mechanism of the multi-physics coupling problems among hypersonic flow, thermal and structure, and hierarchically creating the multi-physics coupling mathematical models and (2) proposing the effective coupling analysis strategies, and synthetically developing a set of high-effective multi-physics coupling integrated analysis method that has engineering applicability. These achievements can provide the theoretical and technical support for the studies on comprehensive performance evaluation and optimization of thermal protection system and the study on aerothermoelastic problem.
