Thermocapillary Effect in a Thermal Rheological Jet

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	Thermocapillary Effect in a Thermal Rheological Jet
	Tang ZM(唐泽眉); Hu WR(胡文瑞)
刊名	Journal of Non-Equilibrium Thermodynamics
	2006
通讯作者邮箱	zmtang@imech.ac.cn
卷号	31 期号:4 页码:385-396
ISSN号	0340-0204
通讯作者	Tang, ZM (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab CAS, Beijing 100080, Peoples R China.
中文摘要	The process of die swell in polymer jets is an important feature within polymer processing and can be explained through a study of its rheological effects. The existence of a thermocapillary effect, driven by the gradient of its surface tension, should be considered when examining a thermal jet that has a non-uniform temperature distribution on its free surface, as in various polymer processings. Both the rheological effect and thermocapillary effect on die swell can be studied numerically through a finite element method as used on a two-dimensional and unsteady model, in which a Coleman-Noll second-order fluid model is employed. The results show that the expanding angle depends on both the rheological property of the fluid and the pressure at the vessel exit. Although both the thermocapillary and the rheological effects contribute to the cross-section expansion of the fluid jet, the latter is more important in determining the expansion.
学科主题	力学
类目[WOS]	Thermodynamics ; Mechanics
研究领域[WOS]	Thermodynamics ; Mechanics
关键词[WOS]	MOVING BOUNDARY ; FLOW ; FIBER
收录类别	SCI
语种	英语
WOS记录号	WOS:000242343200003
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/16774]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Tang ZM,Hu WR. Thermocapillary Effect in a Thermal Rheological Jet[J]. Journal of Non-Equilibrium Thermodynamics,2006,31(4):385-396.
APA	Tang ZM,&Hu WR.(2006).Thermocapillary Effect in a Thermal Rheological Jet.Journal of Non-Equilibrium Thermodynamics,31(4),385-396.
MLA	Tang ZM,et al."Thermocapillary Effect in a Thermal Rheological Jet".Journal of Non-Equilibrium Thermodynamics 31.4(2006):385-396.