Görtler Instability and Transition in Compressible Flows

直接数值模拟 不稳定性 超音速 高超音速 机械 涡流 自由流 边界层 湍流 物理 压缩性 经典力学 计算机模拟 航空航天工程 统计物理学 雷诺数 工程类
作者
Dongdong Xu,Pierre Riccó,Lian Duan
出处
期刊:AIAA Journal [American Institute of Aeronautics and Astronautics]
卷期号:: 1-29
标识
DOI:10.2514/1.j062866
摘要

We present a discussion on theoretical, experimental, and computational research studies on Görtler instability and the related transition to turbulence occurring in compressible boundary layers over concave surfaces. We first examine the theoretical results on primary and secondary instabilities, emphasizing the role of receptivity, the mechanism by which external agents, such as freestream fluctuations or wall roughness, act on a boundary layer to trigger Görtler vortices. We review experimental findings obtained from measurements in supersonic and hypersonic wind tunnels and discuss studies employing numerical methods, focusing on the direct numerical simulation approach. The research in these two last sections is surveyed according to the geometrical configuration, from simple concave walls to more complex surfaces of hypersonic vehicles. The experimental investigations have been successful in the visualizations of Görtler vortices, in the measurement of the wall-heat transfer in the transitional region, and in the computation of the Görtler-vortex growth rates, although detailed boundary-layer velocity measurements are still missing. Direct numerical simulations have confirmed instability results emerging from stability theories and revealed nonlinear interactions between Görtler vortices and other disturbances. The established initial-boundary-value receptivity theory can certainly benefit from more advanced experimental measurements, and receptivity results should be used in combination with direct numerical simulations. A major conclusion of our review is therefore that the understanding of Görtler vortices should be pursued by a combined methodology including theoretical analysis based on the receptivity formalism, direct numerical simulation, and experiments. Highly desirable outcomes of such endeavor are the prediction of the location and extension of the transition region, and a model for the transition process. We finally highlight further prospects and challenges on fundamental and applied research on Görtler instability and transition in compressible flows.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
万能图书馆应助姚大帅采纳,获得10
刚刚
1秒前
甜甜的莞发布了新的文献求助10
2秒前
4秒前
4秒前
4秒前
nn完成签到,获得积分10
5秒前
Haho发布了新的文献求助10
5秒前
论高等数学的无用性完成签到 ,获得积分10
7秒前
025833完成签到,获得积分10
7秒前
Yang完成签到,获得积分10
8秒前
8秒前
李老头发布了新的文献求助10
9秒前
9秒前
澡雪发布了新的文献求助10
9秒前
Sene发布了新的文献求助60
10秒前
英姑应助激昂的亦瑶采纳,获得10
10秒前
姚大帅完成签到,获得积分10
11秒前
研友_VZG7GZ应助竹萧采纳,获得10
12秒前
wxy关闭了wxy文献求助
12秒前
12秒前
量子星尘发布了新的文献求助10
14秒前
dasdwdasd发布了新的文献求助10
15秒前
Atec发布了新的文献求助10
15秒前
Edward发布了新的文献求助10
17秒前
yy完成签到,获得积分10
17秒前
周z2351198754完成签到,获得积分10
18秒前
贤惠的蓝天完成签到,获得积分20
19秒前
李健的小迷弟应助夜王采纳,获得10
19秒前
20秒前
abc123完成签到,获得积分10
21秒前
Juan发布了新的文献求助10
21秒前
咕咕发布了新的文献求助10
23秒前
bkagyin应助结实的半双采纳,获得10
24秒前
ZZ发布了新的文献求助10
25秒前
wxy发布了新的文献求助10
25秒前
27秒前
李老头完成签到,获得积分10
28秒前
乐乐应助Edward采纳,获得10
28秒前
夜王完成签到,获得积分20
29秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3975426
求助须知:如何正确求助?哪些是违规求助? 3519848
关于积分的说明 11199831
捐赠科研通 3256122
什么是DOI,文献DOI怎么找? 1798124
邀请新用户注册赠送积分活动 877386
科研通“疑难数据库(出版商)”最低求助积分说明 806305