| 基于壁面压力分布的非对称喷管反设计 |
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| 引用本文： | 唐兰,徐惊雷,莫建伟,俞凯凯,齐伟呈.基于壁面压力分布的非对称喷管反设计[J].航空动力学报,2017,32(6):1515-1522. |
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| 作者姓名： | 唐兰 徐惊雷 莫建伟 俞凯凯 齐伟呈 |
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| 作者单位： | 南京航空航天大学 能源与动力学院 江苏省航空动力系统重点实验室，南京 210016 |
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| 基金项目： | 南京航空航天大学研究生创新基金（实验室）开放基金（kfjj20150203） |
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| 摘 要： | 针对目前非对称喷管的设计方法上的缺陷，给出了通过指定壁面压力分布规律来反设计其膨胀面型线的方法，获得了膨胀面型线反设计程序，并结合优化算法寻找综合性能较好的喷管壁面压力分布.将采用该方法设计得到的喷管模型与最大推力喷管进行了对比研究.结果表明:在设计点，该喷管的推力系数比最大推力喷管只降低0.102%，而升力和俯仰力矩分别提升2.295%和15.774%.验证了设计思想的正确性，为非对称喷管的设计提供了一种高效的设计方法.
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| 关 键 词： | 壁面压力 非对称喷管 反设计 特征线法 优化算法 |
| 收稿时间： | 2015/9/28 0:00:00 |
Reverse design of asymmetric nozzle based on given wall pressure distribution |
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| TANG Lan,XU Jinglei,MO Jianwei,YU Kaikai,QI Weicheng.Reverse design of asymmetric nozzle based on given wall pressure distribution[J].Journal of Aerospace Power,2017,32(6):1515-1522. |
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| Authors: | TANG Lan XU Jinglei MO Jianwei YU Kaikai QI Weicheng |
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| Abstract: | Reverse design method based on given wall pressure distribution was proposed for the shortcoming of traditional design method of asymmetrical nozzle. The reverse design program of expansion surface was obtained, and optimization method was used to find the wall pressure distribution with better comprehensive performance. Comparisons were made between the nozzle based on given wall pressure distribution and maximum thrust nozzle. The result showed that: the thrust coefficient of the nozzle decreased by 0.102% than that of maximum thrust nozzle, while the lift and pitch moment increased by 2.295% and 15.774% respectively when flow was fully expanded, verifying the design method and providing an efficient design approach for asymmetrical nozzle. |
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| Keywords: | wall pressure asymmetric nozzle reverse design method of characteristics optimization method |
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