Instability of a confined viscoelastic liquid sheet in a viscous gas medium

doi:10.1115/1.4025250

科研成果详情

题名	Instability of a confined viscoelastic liquid sheet in a viscous gas medium
作者	Duan，Run Ze 1; Chen，Zhi Ying 1; Wang，Chen 2; Yang，Li Jun 2
发表日期	2013
发表期刊	Journal of Fluids Engineering, Transactions of the ASME
ISSN/eISSN	0098-2202
卷号	135 期号:12
摘要	A linear analysis method was used to investigate the instability behavior of a viscoelastic liquid sheet moving through a viscous gas bounded by two horizontal parallel flat plates. The liquid sheet velocity profile was taken into account. The result showed that the velocity gradient of viscoelastic liquid sheets was greater than that of the corresponding Newtonian sheets. The effects of time-constant, elasticity number, and the ratio of distance between the liquid sheet and flat plate to liquid sheet thickness on the velocity profiles of viscoelastic liquid sheets were also investigated. The relationship between temporal growth rate and the wave number was obtained using linear stability analysis and solved using the Chebyshev spectral collocation method. The rheological parameters and flow parameters were tested for their influence on the instability of the viscoelastic liquid sheets. It is concluded that disturbances grow faster on viscoelastic liquid sheets than on Newtonian sheets with identical zero shear viscosity. Increasing the momentum flux ratio, elasticity number, Weber number, and liquid Reynolds number accelerated the breakup of the viscoelastic liquid sheet, while increasing the time constant, ratio of the distance between the liquid sheet, and the flat plate to the liquid sheet thickness had the opposite effect. © 2013 by ASME.
关键词	Instability Planar liquid sheet Velocity profile Viscoelastic liquid
DOI	10.1115/1.4025250
URL	查看来源
语种	英语English
Scopus入藏号	2-s2.0-84888090574
引用统计	被引频次：12[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/13006
专题	个人在本单位外知识产出
作者单位	1.School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China 2.School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China
推荐引用方式 GB/T 7714	Duan，Run Ze,Chen，Zhi Ying,Wang，Chenet al. Instability of a confined viscoelastic liquid sheet in a viscous gas medium[J]. Journal of Fluids Engineering, Transactions of the ASME, 2013, 135(12).
APA	Duan，Run Ze, Chen，Zhi Ying, Wang，Chen, & Yang，Li Jun. (2013). Instability of a confined viscoelastic liquid sheet in a viscous gas medium. Journal of Fluids Engineering, Transactions of the ASME, 135(12).
MLA	Duan，Run Ze,et al."Instability of a confined viscoelastic liquid sheet in a viscous gas medium". Journal of Fluids Engineering, Transactions of the ASME 135.12(2013).