Phase-field modeling of free dendritic growth in binary alloy under forced flow

2011 ◽  
Vol 16 (3) ◽  
pp. 356-359 ◽  
Author(s):  
Rong-zhen Xiao ◽  
Zhi-ping Wang ◽  
Chang-sheng Zhu ◽  
Li Feng ◽  
Wen-sheng Li
Keyword(s):  
Binary Alloy ◽  
Phase Field ◽  
Dendritic Growth ◽  
Forced Flow ◽  
Phase Field Modeling ◽  
Field Modeling

scholarly journals Phase-field modeling of free dendritic growth of magnesium based alloy

2015 ◽  
Vol 64 (6) ◽  
pp. 060201
Author(s):  
Duan Pei-Pei ◽  
Xing Hui ◽  
Chen Zhi ◽  
Hao Guan-Hua ◽  
Wang Bi-Han ◽  
...  
Keyword(s):  
Phase Field ◽  
Dendritic Growth ◽  
Phase Field Modeling ◽  
Field Modeling

Phase-Field Simulation of Double Dendritic Growth in Solidification of Binary Alloy with Forced Convection

2011 ◽  
Vol 189-193 ◽  
pp. 1421-1425
Author(s):  
Qiang Liu ◽  
Xiang Jie Yang ◽  
Zhi Ling Liu
Keyword(s):  
Binary Alloy ◽  
Phase Field ◽  
Growth Velocity ◽  
Dendritic Growth ◽  
Force Convection ◽  
Flow Speed ◽  
Forced Flow ◽  
Solute Profile ◽  
Field Approach ◽  
Field Simulation

A phase-field approach which incorporates mass and momentum and solute conservation equations for simulation of Al-Cu binary alloy solidification is studied. The effect of force convection on the double dendrite growth and solute profile during the solidification of binary alloy were investigated. The results indicate that dendritic grows unsymmetrically under a forced flow, the growth velocity of the upstream tip is faster than the downstream tip. The downstream tip of the first dendrite and the upstream tip of the second dendrite are influenced each other, the upstream tip of the second dendrite will Coarsen, and the concentration at the boundary between them is the highest. Moreover, the interaction between the two dendrites is more and more obvious with the increasing of the flow speed.

Phase-Field Simulation of Solidification Double Dendritic Growth of Binary Alloy in the Forced Flow

2011 ◽  
Vol 421 ◽  
pp. 574-577
Author(s):  
Wen Yuan Long ◽  
Ding Ping You ◽  
Jun Ping Yao ◽  
Hong Wan
Keyword(s):  
Binary Alloy ◽  
Phase Field ◽  
Dendritic Growth ◽  
Field Model ◽  
Phase Field Model ◽  
Simple Algorithm ◽  
Force Convection ◽  
Momentum Conservation ◽  
Forced Flow ◽  
Implicit Finite Difference

We study the effect of force convection and temperature on the double dendrite growth during the solidification of binary alloy using a phase-field model. The mass and momentum conservation equations are solved using the Simple algorithm, and the thermal governing equation is numerically solved using an alternating implicit finite difference method. The results indicate that dendritic grows unsymmetrically under a forced flow, the growth velocity of the upstream tip is faster than the downstream tip. The downstream tip of the first dendrite and the upstream tip of the second dendrite are influenced each other, the upstream tip of the second dendrite will Coarsen, and the concentration at the boundary between them is the highest. Moreover, the interaction between the two dendrites is more and more obvious with the increasing of the temperature.

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