Collocation Spectral Method for the Transient Conduction-Radiation Heat Transfer With Variable Thermal Conductivity in Two-Dimensional Rectangular Enclosure

被引：10

作者：

Li, Guo-Jun ^{[1
]}

Ma, Jian ^{[2
]}

Li, Ben-Wen ^{[3
]}

机构：

[1] Northeastern Univ, Sch Met & Mat, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Key Lab, Natl Educ Minist Electromagnet Proc Mat, Shenyang 110819, Peoples R China

[3] Dalian Univ Technol, Sch Energy & Power Engn, Inst Thermal Engn, Dalian 116024, Peoples R China

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2015年 / 137卷 / 03期

关键词：

conduction-radiation heat transfer; transient; participating media; two-dimensional; variable thermal conductivity; collocation spectral method; LATTICE BOLTZMANN METHOD; ANISOTROPICALLY SCATTERING MEDIA; COLLAPSED DIMENSION METHOD; DISCRETE TRANSFER METHOD; FINITE-VOLUME METHOD; INDEX;

D O I：

10.1115/1.4029237

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The collocation spectral method (CSM) is further developed to solve the transient conduction-radiation heat transfer in a two-dimensional (2D) rectangular enclosure with variable thermal conductivity. The energy equation and the radiative transfer equation (RTE) are all discretized by Chebyshev-Gauss-Lobatto collocation points in space after the discrete ordinates method (DOM) discretization of RTE in angular domain. The treatment of variable thermal conductivity is executed using the array multiplication. The present method can deal with different boundary conditions with high accuracy, the Dirichlet one and mixed one, for example. Based on our new method, the effects of several parameters on heat transfer processes are analyzed.

引用

页数：11

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