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首页> 外文期刊>Applied Mathematical Modelling >Transient evaporative laser cutting with moving laser by boundary element method
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Transient evaporative laser cutting with moving laser by boundary element method

机译：边界元法移动激光瞬态蒸发激光切割

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摘要

A computational model for the simulation of a transient laser-cutting process with moving laser has been developed using a boundary element method. An unsteady convective heat transfer model is used that deals with the material-cutting process by a continuous Gaussian laser beam. The geometric non-linearity due to the melting region is handled by an iterative scheme. Convergence analyses are performed with various meshes for the groove shapes, temperature distributions, maximum groove depths, and flux distributions. The present studies by a boundary element method based on transient convective heat transfer equation show excellent agreement with the results of a finite element method in terms of groove shapes, temperature distributions, and maximum groove depths.
机译：使用边界元方法建立了用于模拟移动激光瞬态激光切割过程的计算模型。使用非稳态对流传热模型，该模型通过连续的高斯激光束处理材料切割过程。通过熔化方案来处理由于熔化区域引起的几何非线性。用各种网格对凹槽形状，温度分布，最大凹槽深度和通量分布进行收敛性分析。通过基于瞬态对流换热方程的边界元方法进行的研究表明，在沟槽形状，温度分布和最大沟槽深度方面，与有限元方法的结果非常吻合。

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