| 引用本文: | 李晓宇,潘沙,李桦,等.高超声速飞行器前体外形设计与气动特性分析.[J].国防科技大学学报,2007,29(6):10-13.[点击复制] |
| LI Xiaoyu,PAN Sha,LI Hua,et al.Shape Design and Analysis of Hypersonic Forebody Side Edges[J].Journal of National University of Defense Technology,2007,29(6):10-13[点击复制] |
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| 高超声速飞行器前体外形设计与气动特性分析 |
| 李晓宇, 潘沙, 李桦, 丁国昊 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 利用数值计算开展了高超声速飞行器前体气动特性的考察，重点研究了三维效应对于前体流场及预压缩性能的影响，提出了抑制三维侧缘溢流影响、改善三维前体气动性能的前体侧缘设计思想，考察了侧缘外形的容积效率，提出了有效容积效率的概念和评估方法，对于不同侧缘形式的前体构型进行了气动特性的考察，给出了不同前体构型气动特征的变化规律。 |
| 关键词: 高超声速飞行器 乘波构型 升阻比 容积效率 |
| DOI： |
| 投稿日期：2007-06-15 |
| 基金项目:国家部委基金资助项目 |
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| Shape Design and Analysis of Hypersonic Forebody Side Edges |
| LI Xiaoyu, PAN Sha, LI Hua, DING Guohao |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Aerodynamic characteristics of fore-bodies deduced simply from 2D configurations were studied. To restrain the compressed flow from spilling at side edges of forebodies, shaped waverider was added to the fore-body sides and features of the new fore-body as waverider were proven by CFD analysis. More discussion about volume efficiency of the new shape was made and a concept as usable volume efficiency was presented. Different shapes side edges were designed, usable volume efficiency of each shape was discussed together with aerodynamic characteristics. |
| Keywords: hypersonic vehicle waverider lift to drag ratio volume efficiency |
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