| Simplified analytical models for hypersonic lateral-directional stability | |
Guo SQ(郭帅旗) ; Liu W(刘文); Zhang CA(张陈安); Zhou X(周翔); Wang FM(王发民)
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| Source Publication | ACTA ASTRONAUTICA
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| 2022-09 | |
| Volume | 198Pages:431-444 |
| ISSN | 0094-5765 |
| Abstract | The balance of lateral and directional static stability plays an important role in the lateral-directional dynamics and vehicle design. The theory of geometric influence on the lateral and directional static stability is mature for conventional aircrafts. However, the distinct configuration characteristics and flow physics for hypersonic vehicles may lead to different design theory, which is absent now. In order to solve this problem, simplified analytical models of lateral-directional static derivatives are proposed based on the simplified geometry model. It's found that the lateral and directional stability both increase as the deflection angle, dihedral angle, or angle of attack increases, whereas the influence of sweep angle can be neglected. The difference lies in that the lateral stability is proportional to dihedral angle while the directional stability is proportional to the square of dihedral angle. The reasonable accuracy is validated in comparison with the inviscid numerical solutions. Furthermore, the influence mechanism of viscous effects on the lateral and directional stability is investigated in detail based on the numerical results. It's found that the strong viscous interaction can improve the lateral stability evidently, and both the strong viscous interaction and the shear stress can lead to the increase of the directional stability. In addition, the lateral stability is slightly reduced by the chemical nonequilibrium effects. |
| Keyword | Lateral stability Directional stability Analytical model Viscous effects |
| Subject Area | Engineering, Aerospace |
| DOI | 10.1016/j.actaastro.2022.06.024 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000822433400006 |
| Funding Organization | National Natural Science Foundation of China [11902324] ; Strategic Priority Research Program (A) of Chinese Academy of Science [XDA17030000] |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Liu, W (corresponding author), Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. ; Liu, W (corresponding author), Inst Mech, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90136 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.[Guo, Shuai-Qi 2.Liu, Wen 3.Zhang, Chen-An 4.Zhou, Xiang 5.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 6.Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Guo SQ,Liu W,Zhang CA,et al. Simplified analytical models for hypersonic lateral-directional stability[J]. ACTA ASTRONAUTICA,2022,198:431-444.Rp_Au:Liu, W (corresponding author), Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China., Liu, W (corresponding author), Inst Mech, Beijing 100190, Peoples R China. |
| APA | 郭帅旗,刘文,张陈安,周翔,&王发民.(2022).Simplified analytical models for hypersonic lateral-directional stability.ACTA ASTRONAUTICA,198,431-444. |
| MLA | 郭帅旗,et al."Simplified analytical models for hypersonic lateral-directional stability".ACTA ASTRONAUTICA 198(2022):431-444. |
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| Jp2022FA195_2022_Sim（6978KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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