| 基于伴随方法的动态非定常气动外形优化设计 |
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| 引用本文： | 何建东,雷娟棉.基于伴随方法的动态非定常气动外形优化设计[J].北京理工大学学报,2015,35(2):127-132. |
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| 作者姓名： | 何建东 雷娟棉 |
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| 作者单位： | 北京理工大学宇航学院,北京,100081;北京理工大学宇航学院,北京,100081 |
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| 基金项目： | 国家部委预研项目(201220758) |
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| 摘 要： | 为实现动态非定常条件下的气动外形优化设计,基于非定常形式的欧拉方程及伴随方程,建立了一套完整的针对非定常动态问题的气动外形优化设计方法,并采用所建立的方法,对俯仰振荡的NACA0012翼型在跨声速(Ma=0.8)及限制条件下进行了翼型时均减阻外形优化. 对优化设计的结果进行了分析. 研究结果表明:该动态非定常气动外形优化设计方法具有较高的可靠性和实用性.
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| 关 键 词： | 气动外形优化设计 动态翼型优化 非定常欧拉方程 伴随方法 |
| 收稿时间： | 1/7/2014 12:00:00 AM |
Aerodynamic Shape Optimization for Dynamic Unsteady Flows Based on Adjoint Method |
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| HE Jian-dong and LEI Juan-mian.Aerodynamic Shape Optimization for Dynamic Unsteady Flows Based on Adjoint Method[J].Journal of Beijing Institute of Technology(Natural Science Edition),2015,35(2):127-132. |
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| Authors: | HE Jian-dong and LEI Juan-mian |
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| Institution: | School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | In order to realize aerodynamic shape optimization for dynamic unsteady flows, a complete design system was proposed based on unsteady Euler equation and adjoint method for the aerodynamic shape optimization design. With this method, the aerodynamic shape of airfoil NACA0012 was optimized to reduce its time averaged drag in the operating condition of pitching oscillating , transonic flows (Ma=0.8) and some restrict environment. The optimization results were simulated. The simulation results show that this system is reliable and reasonable. |
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| Keywords: | aerodynamic shape optimization dynamic airfoil optimization unsteady Euler equation adjoint method |
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