TRANSIENT RADIATIVE CONDUCTIVE HEAT-TRANSFER IN FLAT GLASSES SUBMITTED TO TEMPERATURE, FLUX AND MIXED BOUNDARY-CONDITIONS
TRANSIENT RADIATIVE CONDUCTIVE HEAT-TRANSFER IN FLAT GLASSES SUBMITTED TO TEMPERATURE, FLUX AND MIXED BOUNDARY-CONDITIONS
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DOI：
10.1016/0017-9310(89)90229-9
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发表时间：
1989-05-01
影响因子：
5.2
通讯作者：
LALLEMAND, M
中科院分区：
文献类型：
--
作者：
TAN, HP;LALLEMAND, M
基于Hottel的分区法扩展的射线追踪法进行节点分析，以处理瞬态组合的辐射-传导传热一维问题，在非灰色半透明材料，更特别是玻璃提交几个热和辐射边界条件。对于镜面反射的不透明界面和玻璃界面，给出了给定温度、给定辐射-对流换热规律和混合型热边界的耦合问题。考虑了普朗克数、毕奥数、傅里叶数、平板发射率和介质折射率等影响参数变化的影响。数值模拟的两个应用程序进行了研究：预测的时间行为的熔融石英挡风玻璃安装在航天器发动机在再入大气层和模拟的瞬态转移在玻璃熔体接触的一侧与金属浴，并提交到另一侧的辐射对流交换。
A nodal analysis based on Hottel's zonal method extended by the ray tracing method is carried out in order to treat the transient combined radiative-conductive heat transfer one-dimensional problem, in non-grey semi-transparent materials—more especially glasses—submitted to several thermal and radiative boundary conditions. Coupling problems for the prescribed temperatures, prescribed radiative-convective heat exchange laws and mixed kind thermal boundary are worked out for opaque as well as vitreous interfaces with specular reflections. The effects of variations of the influence parameters, Planck number, Biot number, Fourier number, emissivities of the slab and refractive index of the medium are considered. Two applications of the numerical modelling are studied: predictions of the temporal behaviour of a fused silica windshield mounted on a spacecraft engine during re-entry and the simulation of the transient transfer in a glass melt in contact on one side with a metallic bath and submitted to radiative-convective exchanges on the opposite side.