Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles
文献类型：期刊论文
| 作者 | Gao TY(高太元) ; Cui K(崔凯); Wang XP(王秀平); Hu SC(胡守超); Yang GW(杨国伟); Ren L
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| 刊名 | Chinese Science Bulletin
 |
| 出版日期 | 2012 |
| 卷号 | 57期号:8页码:849-857 |
| 关键词 | hypersonic afterbody/nozzle integrated configuration single expanding ramp nozzle optimization computational fluid dynamics |
| 通讯作者 | kcui@imech.ac.cn |
| 合作状况 | 其它 |
| 中文摘要 | The optimization of 2D expansion lines and key parameters of three-dimensional configurations was carried out under simulated conditions of Mach 6.5 and a flight altitude of 25 km for an integrated configuration of the afterbody/nozzle of a hypersonic vehicle. First, the cubic B-spline method was applied to parameterize the expansion lines of the upper expansion ramp. The optimization procedure was established based on computational fluid dynamics and the sequential quadratic programming method. The local mesh reconstruction technique was applied to improve computational efficiency. A three-dimensional integrated configuration afterbody/nozzle was designed based on the two-dimensional optimized expansion lines. The influence rules incorporated certain key design parameters affecting the lift and thrust performance of the configuration, such as the ratio of the lengths of the lower expansion ramp to the afterbody (l/L), the dip angle of the lower expansion ramp ω, and the ratio of exit height to the length of afterbody (H/L). Under these conditions, we found that the integrated configuration has optimal performance when l/L=1/6, H/L=0.35 and ω=10°. We also showed that the presence of a side-board promotes lift and thrust performance, and effectively prevents the leakage of high pressure gas. |
| 英文摘要 | |
| 学科主题 | 计算流体力学 |
| 分类号 | 二类 |
| 收录类别 | SCI |
| 原文出处 | http://csb.scichina.com:8080/Jwk_kxtb_en/EN/10.1007/s11434-011-4948-3 |
| 语种 | 英语 |
| WOS记录号 | WOS:000300771400004 |
| 公开日期 | 2012-09-26 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/45666]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Gao TY,Cui K,Wang XP,et al. Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles[J]. Chinese Science Bulletin,2012,57(8):849-857. |
| APA | Gao TY,Cui K,Wang XP,Hu SC,Yang GW,&Ren L.(2012).Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles.Chinese Science Bulletin,57(8),849-857. |
| MLA | Gao TY,et al."Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles".Chinese Science Bulletin 57.8(2012):849-857. |
入库方式： OAI收割
来源：力学研究所
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