| 高超声速飞行器热气动弹性仿真计算方法综述 |
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| 作者姓名： | 王梓伊 张伟伟 刘磊 |
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| 作者单位： | 西北工业大学航空学院, 陕西西安710072;中国空气动力研究与发展中心国家重点实验室, 四川绵阳621000 |
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| 基金项目： | 国家数值风洞工程NNW2019ZT2-A05国家自然科学基金11972359国家自然科学基金11702310 |
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| 摘 要： | 高超声速飞行器遭遇的热气动弹性问题具有危险性和复杂性，而型号设计又对计算环境下的热气动弹性仿真提出了效率和精度的双重要求.针对此问题，首先回顾了热气动弹性分析中气动力、气动热、结构热传导、热结构动力学等子学科的仿真计算方法，包括工程方法、数值模拟及降阶建模方法.其中，降阶建模方法有望解决目前计算效率和精度的矛盾，是调研的重点.之后，从时空耦合的角度总结了热气动弹性分析的多场耦合计算架构，包括单向、双向空间耦合策略，以及全耦合、松耦合、时域-频域耦合等时间耦合策略.在结论中，提出了基于子学科降阶模型进行多场耦合仿真的思路，并对热气动弹性分析的发展趋势进行了展望.
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| 关 键 词： | 热气动弹性 高超声速飞行器 多场耦合 降阶模型 数值仿真 |
| 收稿时间： | 2020-07-24 |
Review of Simulation Methods of Hypersonic Aerothermoelastic Problems |
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| Affiliation: | 1.School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China2.State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China |
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| Abstract: | 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. |
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