Collocation Spectral Method for the Transient Conduction-Radiation Heat Transfer With Variable Thermal Conductivity in Two-Dimensional Rectangular Enclosure
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论文类型：期刊论文
发表时间：2015-03-01
发表刊物：JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
收录刊物：SCIE、EI、Scopus
卷号：137
期号：3
ISSN号：0022-1481
关键字：conduction-radiation heat transfer; transient; participating media; two-dimensional; variable thermal conductivity; collocation spectral method
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.
发表时间：2015-03-01