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首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Boundary integral solution of thermal radiation exchanges in axisymmetric furnaces
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Boundary integral solution of thermal radiation exchanges in axisymmetric furnaces

机译：轴对称炉中热辐射交换的边界积分解

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摘要

A numerical algorithm is presented for predicting thermal radiation exchanges among surface elements in axisymmetric geometries. The algorithm is based on the Galerkin boundary-element formulation, enhanced with the best ideas of computer graphics used for image clipping and image object sorting to detect shadowing effects, and incorporating an adaptive integration scheme to improve the accuracy and efficiency of the computation of the radiation exchange kernels with abrupt discontinuities due to blockages of various complexities. Detailed descriptions of the algorithm and numerical implementation are given. Numerical results are compared with analytical solutions whenever available. The coupling of the surface radiation exchange calculations with those for Marangoni convection and heat conduction, as occurring in materials processing systems, is also discussed. [References: 15]
机译：提出了一种数值算法来预测轴对称几何形状中表面元素之间的热辐射交换。该算法基于Galerkin边界元素公式，并结合了用于图像裁剪和图像对象分类以检测阴影效果的计算机图形学的最佳思想，并结合了自适应积分方案以提高计算的准确性和效率。由于各种复杂性的阻碍而具有突然间断的辐射交换内核。给出了算法的详细说明和数值实现。如有可能，将数值结果与解析解进行比较。还讨论了表面辐射交换计算与材料处理系统中发生的Marangoni对流和热传导计算的耦合。 [参考：15]

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