Absolute and convective instability ofa confined swirling annular liquid layer

doi:10.1615/AtomizSpr.2014007776

科研成果详情

题名	Absolute and convective instability ofa confined swirling annular liquid layer
作者	Fu，Qing Fei; Yang，Li Jun; Tong，Ming Xi; Wang，Chen
发表日期	2014
发表期刊	Atomization and Sprays
ISSN/eISSN	1044-5110
卷号	24 期号:7 页码:555-573
摘要	The linear temporal and spatial-temporal instability behavior of a confined swirling annular liquid layer was investigated theoretically. The practical situation that motivated this investigation is the core-annular film flow regime encountered in industrial heat transfer and the recessed gas-centered swirl coaxial injector, usually used in liquid propellant rocket engines. The dispersion relation for the liquid layer was developed and a parametric study was performed using this relation on the temporal and spatial-temporal instability to test the influence of non-dimensional flow parameters on the stability behavior of the layer. The temporal stability analysis shows that a larger non-dimensional outer injector radius, Rossby number, and liquid Weber number would destabilize the confined annular liquid layer. A larger liquid-to-gas density ratio and velocity ratio would decrease the disturbance growth rate. In the spatial-temporal mode, the absolute growth rate can be affected by these parameters. For a small value of liquid-to-gas density ratio, velocity ratio, and liquid Weber number, or a great value of non-dimensional radius of confinement wall and Rossby number, the flow is absolutely unstable. The wavelength predicted with spatial-temporal analysis is much larger than that predicted using the temporal analysis. However, the wavelength rarely changes with these dimensionless parameters in absolute instability mode. © 2014 by Begell House, Inc.
关键词	Absolute instability Confined annular layer Linear stability analysis Spatial-temporal mode
DOI	10.1615/AtomizSpr.2014007776
URL	查看来源
语种	英语English
Scopus入藏号	2-s2.0-84901308199
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://repository.uic.edu.cn/handle/39GCC9TT/13003
专题	个人在本单位外知识产出
作者单位	School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing, 100191,China
推荐引用方式 GB/T 7714	Fu，Qing Fei,Yang，Li Jun,Tong，Ming Xiet al. Absolute and convective instability ofa confined swirling annular liquid layer[J]. Atomization and Sprays, 2014, 24(7): 555-573.
APA	Fu，Qing Fei, Yang，Li Jun, Tong，Ming Xi, & Wang，Chen. (2014). Absolute and convective instability ofa confined swirling annular liquid layer. Atomization and Sprays, 24(7), 555-573.
MLA	Fu，Qing Fei,et al."Absolute and convective instability ofa confined swirling annular liquid layer". Atomization and Sprays 24.7(2014): 555-573.