配置点谱方法求解一维圆柱梯度折射率介质中的辐射传热  

Collocation Spectral Method for Radiative Heat Transfer in One-dimensional Cylindrical Medium with Graded Index

作　　者：吴鸣[1] 周瑞睿 李本文[2] WU Ming;ZHOU Ruirui;LI Benwen(College of Information Engineering,Wuhan Engineering Institute,Wuhan,Hubei 430415,China;School of Energy&Power Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China)

机构地区：[1]武汉工程职业技术学院信息工程学院,湖北武汉430415 [2]大连理工大学能源与动力学院,辽宁大连116024

出　　处：《计算物理》2020年第3期320-326,共7页Chinese Journal of Computational Physics

基　　金：国家重点研发计划(2017YFB0603500)资助项目。

摘　　要：发展一种配置点谱方法,计算包含半透明各向异性散射介质的圆柱系统中的辐射传热.介质具有梯度折射率,并且散射反照率随空间位置变化.通过与精确解或其他方法的结果对比,验证配置点谱方法的准确性.结果表明:配置点谱方法仅采用少量的节点数就可以得到准确的辐射热流量.We develop a collocation spectral method(CSM)to address radiative transfer in a semitransparent anisotropic scattering cylindrical medium with graded index and space-dependent albedo.Accuracy and validity of the method is verified with exact solutions available in literature and other methods.CSM is found effective in obtaining radiative flux in graded index medium.And few nodes are enough to obtain accurate results.

关 键 词：CHEBYSHEV多项式 谱方法 辐射传递方程 圆柱介质 梯度折射率 

分 类 号：TK124[动力工程及工程热物理—工程热物理]