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Spatial discretization error in an artificial benchmark model of oblique laser incidence by finite volume approximation for radiative heat transfer

ISSN号：1005-023X
期刊名称：《材料导报》
时间：0
分类：TP391.72[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术] V211.3[航空宇航科学与技术—航空宇航推进理论与工程;航空宇航科学技术]
作者机构：[1]School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China, [2]Institute of Composite Materials, Harbin Institute of Technology, Harbin 150001, China
相关基金：This work was supported by the National Natural Science Foundation of China （51121004, 51006026, 90916020） and the Development Program for Outstanding Young Teachers in Harbin Institute of Technology （HITQNJS.2009.022）.

作者： ZHANG HaoChun[1,2], LI Yao[2]

关键词：有限体积法, 入射方向, 模型空间, 辐射传热, 基准模型, 离散误差, 激光, 人工, finite volume method, spatial discretization error, radiative heat transfer, oblique laser incidence

中文摘要：

在为放射的热转移的有限体积方法近似的空间 discretization 错误被调查。为包含半透明的媒介的一个二维的矩形上的倾斜的激光发生的一个人工的基准模型被建议，除了使用从蒙特卡罗方法的引用数据。在当前的模型的框架以内，在有限体积方法的数字散布被空间格子价值和不同空间 discretization 计划影响到大度，这被显示出。数字散布也与吸收系数偏差的度变化。数字散布在沿着激光发生方向的对称的侧面是分布式的，并且所有计划显示出对称的跨 scattering。

英文摘要：

The spatial discretization error in a finite volume method approximation for radiative heat transfer is investigated. An artificial benchmark model for oblique laser incidence on a two-dimensional rectangle containing a semi-transparent medium is proposed, in addition to using reference data from the Monte Carlo method. Within the framework of the current model, it is shown that numerical scattering in the finite volume method is affected by the spatial grid values and the different spatial discretization schemes to a large degree. Numerical scattering also varies with the degree of absorption coefficient deviation. Numerical scattering is distributed in a symmetrical profile along the laser incidence direction, and all of the schemes show symmetrical cross- scattering.