Three-dimensional dynamics of thin liquid films on vertical cylinders with Marangoni effect

被引：22

作者：

Ding, Zijing ^{[1
,2
]}

Wong, Teck Neng ^{[2
]}

机构：

[1] Univ Hong Kong, Dept Mech Engn, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China

[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore 639798, Singapore

来源：

PHYSICS OF FLUIDS | 2017年 / 29卷 / 01期

关键词：

VISCOUS BEADS; FIBER; FLOWS;

D O I：

10.1063/1.4974076

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The effects of thermocapillary force on the three dimensional dynamics of thin liquid films flowing downa uniformly heated vertical cylinder are investigated using a thin film model. Linear and nonlinear analyses predict the existence of a non-axisymmetric mode due to the Marangoni effect. Symmetry-breaking of axisymmetric steady traveling waves is observed when the Marangoni number exceeds a critical value. Linear stability analysis demonstrates that the steady traveling wave can be unstable to azimuthal disturbances due to the Marangoni effect, leading to the formation of non-axisymmetric patterns. Published by AIP Publishing.

引用

页数：6

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