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	Numerical simulation of transient flow patterns of upper swirls in continuous slab casting moulds
	Liu, Rui ; Ji, Wei ; Li, Jin ; Shen, Houfa ; Liu, Baicheng
	2010-05-10 ; 2010-05-10
会议名称	STEEL RESEARCH INTERNATIONAL ; 2nd International Conference on Simulation and Modelling of Metallurgical Processes in Steelmaking ; Graz Seggau, AUSTRIA ; Web of Science
关键词	turbulent flow vortex shedding continuous casting LES CONTINUOUS STEEL CASTER FLUID-FLOW TURBULENT-FLOW WATER MODEL Metallurgy & Metallurgical Engineering
中文摘要	The transient aspect of turbulent flow in a continuous slab casting mould is studied and the transient flow patterns of the upper rolls are investigated through the application of Large Eddy Simulation (LES), employing a static Smagorinsky sub-grid scale (SGS) model. The unsteady and coherent features of the upper recirculation zones are found, and the mechanism causing vortices developing from the upper recirculation zones is described and analysed. Results show that the asymmetry of flow patterns of the upper rolls appears most of the time. The upper swirls may break into a series of relatively small scale vortices that are chaotically distributed, and large-scale vortex shedding occurs during the switching process between flow patterns.
会议录出版者	VERLAG STAHLEISEN MBH ; DUSSELDORF ; SOHNSTRABE 65, D-40237 DUSSELDORF, GERMANY
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/19029]
专题	清华大学
推荐引用方式 GB/T 7714	Liu, Rui,Ji, Wei,Li, Jin,et al. Numerical simulation of transient flow patterns of upper swirls in continuous slab casting moulds[C]. 见:STEEL RESEARCH INTERNATIONAL, 2nd International Conference on Simulation and Modelling of Metallurgical Processes in Steelmaking, Graz Seggau, AUSTRIA, Web of Science.

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