Computer simulation of convection in moving arc weld pools
Computer simulation of convection in moving arc weld pools
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DOI：
10.1007/bf02645925
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发表时间：
1986-12
期刊：
影响因子：
--
通讯作者：
Sindo Kou;Y. Wang
中科院分区：
文献类型：
--
作者：
Sindo Kou;Y. Wang
对运动电弧焊熔池中的三维对流进行了计算机模拟，考虑了三种不同的流动驱动力--电磁力、浮力和熔池表面的表面张力梯度。给出了熔池中电磁力的计算公式。计算和实验观察到的熔合边界进行了比较。计算中使用的电弧效率和电流密度和功率密度的空间分布是基于实验测量结果，以验证模型。讨论了电磁力和表面张力的影响。
Computer simulation for three-dimensional convection in moving arc weld pools was described, with three distinct driving forces for flow considered — the electromagnetic force, the buoyancy force, and the surface tension gradient on the pool surface. Formulation of the electromagnetic force in the weld pool was presented. The calculated and experimentally observed fusion boundaries were compared. The arc efficiency and spatial distributions of the current density and power density used in the calculations were based on experimentally measured results, in order to verify the model. The effects of the electromagnetic and surface tension forces were discussed.