| 引用本文: | 夏智勋,朱自强.适定的跨音速翼型反设计方法研究.[J].国防科技大学学报,1992,14(4):1-6.[点击复制] |
| Xia Zhixun,Zhu Ziqiang.A Well-posed Inversed Design Method for Transonic Airfoil[J].Journal of National University of Defense Technology,1992,14(4):1-6[点击复制] |
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| 适定的跨音速翼型反设计方法研究 |
| 夏智勋1, 朱自强2 |
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(1.国防科学技术大学;2.北京航空航天大学)
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| 摘要: |
| 从不可压流反问题的 Lightill 准确解中可知，翼面压强分布和自由来流速度两者不能同时独立地给定。这意味着对于给定的压强分布存在着一个约束条件，否则，反设计问题就是不适定的。对于可压缩流动，同样应该存在类似的约束条件。本文在这方面做了初步探索，给出了一种满足这种约束条件的跨音速翼型反设计方法。在此方法中，目标压强分布包含一个自由参数，在计算中可调整此参数使压强分布满足本文推导出的正则化条件。 |
| 关键词: 空气动力学，跨音速翼型，反设计 |
| DOI： |
| 投稿日期：1992-02-13 |
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| A Well-posed Inversed Design Method for Transonic Airfoil |
| Xia Zhixun1, Zhu Ziqiang2 |
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(1.National University of Defense Technology;2.Beijing University of Aeronautics and Astronautics)
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| Abstract: |
| From the Lighthill's exact solution for the incompressible inverse problem it is known that in the inverse design problem，the surface pressure distribution and the free stream speed can not be both prescribed independently. This suggests the existence of a constraint (regularity condition)on the pressure distribution. The same constraint exists at compressible speeds. In this paper，a well-posed inverse design method for transonic airfoil is presented. In the method，the target pressure distribution contains a free prameter that can be adjusted during the computation to satisfy the regularity condition derived in this paper. |
| Keywords: aerodynamics,transonic airfoil,inverse design |
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