A quasi-one-dimensional model for hypersonic reactive flow along the stagnation streamline | |
Chen S; Sun QH(孙泉华) | |
发表期刊 | CHINESE JOURNAL OF AERONAUTICS |
2016 | |
卷号 | 29期号:6页码:1517-1526 |
ISSN | 1000-9361 |
摘要 | This study proposes a quasi-one-dimensional model to predict the chemical nonequilibrium flow along the stagnation streamline of hypersonic flow past a blunt body. The model solves reduced equations along the stagnation streamline and predicts nearly identical results as the numerical solution of the full-field Navier-Stokes equations. The high efficiency of this model makes it useful to investigate the overall quantitative behavior of related physical-chemical phenomena. In this paper two important properties of hypersonic flow, shock stand-off distance and oxygen dissociation, are studied using the quasi-one-dimensional model with the ideal dissociating gas model. It is found that the shock stand-off distance is affected by both chemical and thermal non-equilibrium. The shock stand-off distance will increase when the flow conditions are changed from equilibrium to non-equilibrium, because the average density of the shock-compressed gas will decrease as a result of the increase in translational energy. For oxygen dissociation, the maximum value of its dissociation degree along the stagnation line varies with the flight altitude. It is increased at first and decreased thereafter with the altitude, which is due to the combination effect of the equilibrium shift and chemical non-equilibrium relaxation. The overall variation of the maximum dissociation is then plotted in the speed and altitude coordinates as a reference for engineering application. (C) 2016 Chinese Society of Aeronautics and Astronautics. Production and hosting by Elsevier Ltd. |
DOI | 10.1016/j.cja.2016.09.004 |
URL | 查看原文 |
收录类别 | SCI ; EI ; CSCD |
语种 | 英语 |
WOS记录号 | WOS:000393113300006 |
关键词[WOS] | Quasi-one-dimensional model ; Hypersonic ; Non-equilibrium ; Stagnation flow ; Shock stand-off distance |
WOS研究方向 | Engineering |
WOS类目 | Engineering, Aerospace |
项目资助者 | This work was supported by the National Natural Science Foundation of China (Nos. 1372325 and 91116013). |
CSCD记录号 | CSCD:5884786 |
课题组名称 | LHD微尺度和非平衡流动 |
论文分区 | 二类 |
力学所作者排名 | 1 |
RpAuthor | 孙泉华 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/60087 |
专题 | 高温气体动力学国家重点实验室 |
通讯作者 | Sun QH(孙泉华) |
推荐引用方式 GB/T 7714 | Chen S,Sun QH. A quasi-one-dimensional model for hypersonic reactive flow along the stagnation streamline[J]. CHINESE JOURNAL OF AERONAUTICS,2016,29,6,:1517-1526. |
APA | Chen S,&Sun QH.(2016).A quasi-one-dimensional model for hypersonic reactive flow along the stagnation streamline.CHINESE JOURNAL OF AERONAUTICS,29(6),1517-1526. |
MLA | Chen S,et al."A quasi-one-dimensional model for hypersonic reactive flow along the stagnation streamline".CHINESE JOURNAL OF AERONAUTICS 29.6(2016):1517-1526. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
IMCAS-J2016-380.pdf(1688KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
Lanfanshu学术 |
Lanfanshu学术中相似的文章 |
[Chen S]的文章 |
[Sun QH(孙泉华)]的文章 |
百度学术 |
百度学术中相似的文章 |
[Chen S]的文章 |
[Sun QH(孙泉华)]的文章 |
必应学术 |
必应学术中相似的文章 |
[Chen S]的文章 |
[Sun QH(孙泉华)]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论