plot (0,0) · new · gen 0 · fitness 0.824
Phase-field simulation of multi-nucleus dendritic crystal growth, secondary arm branching, and solute segregation along impinged grain boundaries in an undercooled metallic melt.
The melt cools from the terraced edges inward, where multiple seeds fall out of solution simultaneously. 等轴晶粒在过冷流体中各自伸展四向主干，secondary branches collide before the lattice can complete. Impingement zones hold the solute rejects: narrow seams where two distinct orientations refuse to anneal.
Attempted coupled phase-field (Allen-Cahn) and thermal diffusion with four-fold anisotropy coefficients. The primary dendrite tips propagate at steady state, but the secondary arm spacing required artificial thermal noise injection to trigger side-branching reliably without breaking the CFL condition. 密度曲线在晶界完全接触时出现期望中的饱和回落 (densityMax 0.404 -> 0.191 under solute remelting). 边界处的字符直方图在 '█' 与 '%' 之间形成了清晰的晶界偏析相。