[1]陈 雄,周长省,郑 亚.侧向支柱对冲压增程弹用进气道性能影响研究[J].南京理工大学学报(自然科学版),2007,(05):541-545.
 CHEN Xiong,ZHOU Chang-sheng,ZHENG Ya.Influence of Strut Shapes on Performance of Ramjet Assisted Range Projectile Inlet[J].Journal of Nanjing University of Science and Technology,2007,(05):541-545.
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侧向支柱对冲压增程弹用进气道性能影响研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2007年05期
页码:
541-545
栏目:
出版日期:
2007-10-30

文章信息/Info

Title:
Influence of Strut Shapes on Performance of Ramjet Assisted Range Projectile Inlet
作者:
陈 雄 周长省 郑 亚
南京理工大学机械工程学院, 江苏南京210094
Author(s):
CHEN XiongZHOU Chang-shengZHENG Ya
School of Mechanical Engineering,NUST,Nanjing 210094,China
关键词:
进气道 分区算法 冲压发动机 弹丸
Keywords:
inlets zona lm ethod ram jet pro jectiles
分类号:
TJ413
摘要:
结合分区对接网格技术和二阶精度区域分解算法,对某冲压增程弹丸进气道在不同来流攻角和不同侧向支柱形状工况下的内外复杂流场进行了数值模拟。得到了临界工况下超声速进气道内外粘性流场复杂的波系结构,分析了流场结构特性和激波波系结构。当进气道扩压段有侧向支柱存在时,进气道总压恢复系数和动能系数均有所降低,而流场畸变指数则显著增大。在三种形状侧向支柱中,采用两端削尖支柱形状的进气道的性能最优。攻角的存在也在一定程度上降低了进气道性能。
Abstract:
W ith zonal patched grid techno logy and second-order zona l solvermethod, the num erical simu la tion on inlet complex flow fie ld of so lid rocket ram jet assisted range pro ject iles w ith different struts shapesw as made at differentM ach numbers. Comp lex w ave structures of superson ic inlet at critica l sta tus are achieved by numerica l simu lation, and ana lysis on flow structure characteristic and shock w ave structure ismade. W hen there are struts at the divergent parts o f inle,t the total pressure recovery coefficients and the kinet ic energy coe ff icients of in let decrease, and the flow distort ion index increases obv iously. During the three types of struts, the performance of in let w ith rhomb ic struts is exce llen.t The ex istence o f ang le of attack reduces the in let performance.

参考文献/References:

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[ 8] Chen X, Zhou C S, ZhengY, et a.l In fluence o f cow l lead ing edge on performance of ram jet assisted-range pro jectile inlet [ R]. A IAA 2005- 3642.
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相似文献/References:

[1]鞠玉涛,周长省,王政时.超声速轴对称双锥进气道流场数值模拟研究[J].南京理工大学学报(自然科学版),2005,(04):411.
 JU Yu-tao,ZHOU Chang-sheng,WANG Zheng-shi.Numerical Analysis on Flow Field of Supersonic Axisymmetric Double Cone-shaped Inlet[J].Journal of Nanjing University of Science and Technology,2005,(05):411.
[2]陈 雄,鞠玉涛,朱福亚.冲压增程弹用进气道试验与数值研究[J].南京理工大学学报(自然科学版),2007,(04):462.
 CHEN Xiong,JU Yu-tao,ZHU Fu-ya.Experimental and Numerical Research on Inlet of Ramjet Assisted Range Projectiles[J].Journal of Nanjing University of Science and Technology,2007,(05):462.

备注/Memo

备注/Memo:
作者简介: 陈雄( 1977- ) , 男, 四川绵阳人, 讲师, 博士, 主要研究方向: 计算流体力学及新型推进技术, E-mail: chenx iong sc@ 163. com。
更新日期/Last Update: 2007-10-30