Phase-field model simulations of alloy directional solidification and seaweed-like microstructure evolution based on adaptive finite element method

2019 ◽  
Vol 160 ◽  
pp. 53-61 ◽  
Author(s):  
Chang-sheng Zhu ◽  
Sheng Xu ◽  
Li Feng ◽  
Dan Han ◽  
Kai-ming Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Directional Solidification ◽  
Microstructure Evolution ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Adaptive Finite Element Method ◽  
Adaptive Finite Element ◽  
Model Simulations

Research the Effect of Forced Flow on Dendritic Growth with Adaptive Finite Element Method

2014 ◽  
Vol 926-930 ◽  
pp. 218-221
Author(s):  
Chang Sheng Zhu ◽  
Peng Lei ◽  
Rong Zhen Xiao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Flow Velocity ◽  
Field Model ◽  
Phase Field Model ◽  
Forced Flow ◽  
Adaptive Finite Element Method ◽  
Adaptive Finite Element ◽  
Dendrite Morphology ◽  
Element Method

Phase field model coupled with flow field is solved by the adaptive finite element method. The simulation results show that the forced flow can induce side-branches though there is no thermal noise. When the flow velocity is low, the symmetry of dendrite morphology is slightly influenced by forced flow. With the increase of flow velocity, the symmetry of dendrite morphology is collapsed completely.

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