高超声速飞行器后体喷管设计
Nozzle afterbody design of hypersonic flight vehicle
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摘要: 为得到二维高超声速飞行器后体喷管优化型面, 建立了基于N-S方程的二维后体喷管设计模型, 分别对内部喷管长度和上壁型面进行设计, 得到了后体喷管优化设计外形, 并将结果与Edwards提供的基准进行比较, 表明改进了后体喷管的推进性能.Abstract: A model based on numerical solution of Navier-Stokes equations was established for hypersonic flight vehicle nozzle afterbody optimization design.The internal portion and the upper wall of nozzle were designed,and the optimized configuration was obtained.The result was compared to the norm configuration that Edwards claimed.The results show that the performance of nozzle afterbody was improved.
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Key words:
- aerospace propulsion system /
- hypersonic /
- nozzle afterbody /
- numerical simulation /
- expansion wave
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[1] 刘陵.超声速燃烧与超声速燃烧冲压发动机[M].西安:西北工业大学出版社,1993. [2] Edwards C L Q,Small W J,Weidner J P.Studies of scramjet/airframe integration techniques for hyper-sonic aircraft[R].AIAA-75-58. [3] 潘锦珊.气体动力学基础[M].北京:国防工业出版社,1988. [4] 李人宪.有限体积法基础[M].北京:国防工业出版社,2005. -
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