Influences of Marangoni effect on solidification of curved interfaces with constant curvature

Influences of Marangoni effect on solidification of

curved interfaces with constant curvature

佚名

【期刊名称】《《应用数学和力学（英文版）》》 【年(卷),期】2008(029)002

【摘要】The asymptotic method and phase field simulation are applied to study the influences of variation of the surface tension with temperature on the movements of solid-liquid interfaces in the solidification

process

of

spherical

and

cylindrical

nuclei,respectively.Results indicate that Marangoni effect will increase the critical nucleation radius,slow up the movement of interface.The tip speed of dendrite decreases linearly with Marangoni number for melt without convection.The results of phase field simulation are qualitatively in accord with that of asymptotic method. 【总页数】7页(145-151)

【关键词】solidification;phase effect;asymptotic method;crystal growth 【作者】佚名

【作者单位】Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 P.R.China; Shanghai Kev Laboratory of Mechanics in Energy and Environment Engineering Shanghai 200072 P.R.China

field

simulation;Marangoni