An upwind numerical solution of nonlinear advection-diffusion problems with a moving heat source

被引：0
|
作者：
Al-Khalidy, N [1 ]
机构：
[1] Silesian Tech Univ, PL-44101 Gliwice, Poland
来源：
HEAT AND MASS TRANSFER | 1998年 / 34卷 / 04期
关键词：
Welding; Welding Process; Welding Speed; Upwind Scheme; Nonlinear Boundary Condition;
D O I：
10.1007/s002310050261
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In the present work, two-dimensional temperature variations and a position of a weldpool within a workpiece during keyhole plasma are welding are determined. The model allows to include temperature dependent thermal properties, variable welding speed, different keyhole radii and a nonlinear boundary condition of the third kind on the upper and the lower surfaces of the workpiece. The upwind scheme (donor cell method) is employed to present physically realistic numerical solutions. The obtained results can be used for controlling the plasma are welding process through the controlling of plasma jet diameter.
引用
收藏
页码：287 / 293
页数：7
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