scholarly journals Effect of forced convection on dendrite growth kinetics

2019 ◽  
Author(s):  
L. V. Toropova
Keyword(s):  
Forced Convection ◽  
Growth Kinetics ◽  
Dendrite Growth

A New Growth Kinetics in Simulation of Dendrite Growth by Cellular Automaton Method

2007 ◽  
Vol 26-28 ◽  
pp. 957-962 ◽  
Author(s):  
Bo Wei Shan ◽  
Xin Lin ◽  
Lei Wei ◽  
Wei Dong Huang
Keyword(s):  
Cellular Automaton ◽  
Growth Kinetics ◽  
Solute Concentration ◽  
Dendrite Growth ◽  
Liquid Interface ◽  
Interface Temperature ◽  
Algebraic Equations ◽  
Interface Growth ◽  
Solid Liquid Interface ◽  
Solid Liquid

A modified cellular automaton model was proposed to simulate the dendrite growth of alloy. Different from previous models, this model used neither an analytical equation(such as KGT model) nor an interface solute gradient equation to solve the velocity of solid-liquid interface, but used the interface solute and energy conservation and thermodynamic equilibrium condition to describe the solid/liquid interface growth kinetics process. In present model, once the temperature field and solute field were solved by finite different method in the entire domain, the material thermodynamic properties can be substituted into four algebraic equations to easily determine the variation of solid fraction, interface temperature and solute concentration, instead of calculating interface moving velocity. As a result, the complexity of the calculation can be largely reduced. The simulated dendrite growth was in a good agreement with the Lipton–Glicksman–Kurz (LGK) model for free dendritic growth in undercooled melts.

scholarly journals Suppression of dendrite growth by cross-flow in microfluidics

2021 ◽  
Vol 7 (8) ◽  
pp. eabf6941
Author(s):  
Meghann C. Ma ◽  
Gaojin Li ◽  
Xinye Chen ◽  
Lynden A. Archer ◽  
Jiandi Wan
Keyword(s):  
Electric Field ◽  
Forced Convection ◽  
Electrode Surface ◽  
Cross Flow ◽  
Rechargeable Batteries ◽  
Dendrite Growth ◽  
Ion Diffusion ◽  
Critical Problem ◽  
Charged Fluid ◽  
Effective Strategies

Formation of rough, dendritic deposits is a critical problem in metal electrodeposition processes and could occur in next-generation, rechargeable batteries that use metallic electrodes. Electroconvection, which originates from the coupling of the imposed electric field and a charged fluid near an electrode surface, is believed to be responsible for dendrite growth. However, few studies are performed at the scale of fidelity where root causes and effective strategies for controlling electroconvection and dendrite growth can be investigated in tandem. Using microfluidics, we showed that forced convection across the electrode surface (cross-flow) during electrodeposition reduced metal dendrite growth (97.7 to 99.4%) and delayed the onset of electroconvective instabilities. Our results highlighted the roles of forced convection in reducing dendrite growth and electroconvective instabilities and provided a route toward effective strategies for managing the consequences of instability in electrokinetics-based processes where electromigration dominates ion diffusion near electrodes.

Multi-GPUs parallel computation of dendrite growth in forced convection using the phase-field-lattice Boltzmann model

2017 ◽  
Vol 474 ◽  
pp. 154-159 ◽  
Author(s):  
Shinji Sakane ◽  
Tomohiro Takaki ◽  
Roberto Rojas ◽  
Munekazu Ohno ◽  
Yasushi Shibuta ◽  
...  
Keyword(s):  
Parallel Computation ◽  
Forced Convection ◽  
Phase Field ◽  
Lattice Boltzmann ◽  
Dendrite Growth ◽  
Lattice Boltzmann Model ◽  
Boltzmann Model
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