基于界面追踪-动网格技术模拟凝固收缩下Fe-C合金宏观偏析

董士虎, 张红伟, 吕文朋, 雷洪, 王强

Numerical Simulation on Macrosegregation in Fe-C Alloy Under Solidification Shrinkage Through Interface Tracking-Dynamic Mesh Technique

DONG Shihu, ZHANG Hongwei, LÜ Wenpeng, LEI Hong, WANG Qiang

图9 仅考虑热-溶质浮升力和凝固收缩+热-溶质浮升力、不同时刻的液相分数和速度场

Fig.9 Liquid fractions and velocity distributions (a-f, i, k) and locally enlarged parts (g, h, j, l) during solidification considering buoyancy (a-d) and shrinkage + buoyancy (e-l) at different time (ul, max—the maximum velocity in melt) (a, e) t = 300 s (b, f-h) t = 600 s (c, i, j) t = 5000 s (d, k, l) t = 20000 s (g, h) locally enlarged part of Fig.9f (j) locally enlarged part of Fig.9i (l) locally enlarged part of Fig.9k