| 鼓包对舵的气动特性影响研究 |
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| 引用本文： | 董程栋,叶卫国. 鼓包对舵的气动特性影响研究[J]. 航空学报, 2002, 23(4): 324-326 |
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| 作者姓名： | 董程栋 叶卫国 |
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| 作者单位： | 1. 上海交通大学,1011研究室,上海,200030
2. 上海航天局,第八设计部,上海,200233 |
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| 摘 要： | 运用自适应八叉树结构直角网格 Euler算法对舵的流场进行了模拟。与无鼓包的舵相比较,带有鼓包的舵其气动特性,尤其是阻力有所变化。给出了直角网格生成方法以及 Euler方程解法。结果显示,本算法很准确地捕捉了激波,真实地模拟了该流场。在此基础上讨论了鼓包及其位置对舵的气动特性的影响。
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| 关 键 词： | 鼓包 舵 Euler方程 八叉树结构 直角网格 |
| 文章编号： | 1000-6893(2002)04-04-0324 |
| 修稿时间： | 2001-07-30 |
RESEARCH ON AERODYNAMICAL CHARACTERISTICS OF A FIN WITH BULGE |
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| DONG Cheng|dong+,YE Wei|guo+. RESEARCH ON AERODYNAMICAL CHARACTERISTICS OF A FIN WITH BULGE[J]. Acta Aeronautica et Astronautica Sinica, 2002, 23(4): 324-326 |
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| Authors: | DONG Cheng|dong+ YE Wei|guo+ |
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| Affiliation: | DONG Cheng|dong+1,YE Wei|guo+2 |
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| Abstract: | A computational study based on the Cartesian grid method and Euler solver for the three|dimensional inviscid flow around a fin with a bulge has been conducted. Compared with the fin without bulges, the aerodynamic characteristics of the a fin with a bulge are changed, especially for the drag. This paper explains the general issues of the grid generation and Euler solver. The computational Mach contours agree well with the corresponding experimental ones. Effects of the existence and position of a bulge have been discussed. |
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| Keywords: | bulge fin Euler equations octree structure Cartesian grid |
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