Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34005
Title: Large eddy simulation of Marangoni convection in Czochralski crystal growth
Authors: Cen, X
Zhan, J
Li, YS 
Keywords: crystal growth
Czochralski
large eddy simulation
Marangoni convection
Issue Date: 2011
Publisher: Wiley-V C H Verlag Gmbh
Source: Crystal research and technology, 2011, v. 46, no. 1, p. 14-22 How to cite?
Journal: Crystal Research and Technology 
Abstract: Large eddy simulation model is used to simulate the fluid flow and heat transfer in an industrial Czochralski crystal growth system. The influence of Marangoni convection on the growth process is discussed. The simulation results agree well with experiment, which indicates that large eddy simulation is capable of capturing the temperature fluctuations in the melt. As the Marangoni number increases, the radial velocity along the free surface is strengthened, which makes the flow pattern shift from circumferential to spiral. At the same time, the surface tension reinforces the natural convection and forces the isotherms to curve downwards. It can also be seen from the simulation that a secondary vortex and the Ekman layer are generated. All these physical phenomena induced by Marangoni convection have great impacts on the shape of the growth interface and thus the quality of the crystal.
URI: http://hdl.handle.net/10397/34005
DOI: 10.1002/crat.201000503
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