| 有限体积法解多场耦合下散射性非灰介质内的辐射换热 |
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| 引用本文： | 贺志宏,谈和平,刘林华. 有限体积法解多场耦合下散射性非灰介质内的辐射换热[J]. 化工学报, 2001, 52(5): 434-439 |
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| 作者姓名： | 贺志宏 谈和平 刘林华 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院 |
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| 基金项目： | 国家自然科学基金! (No.5 980 60 0 3 )，国家杰出青年科学基金! (No .5 972 5 617)资助项目&& |
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| 摘 要： | 将有限体积法与谱带模型结合 ,求解了吸收、散射性非灰介质内的耦合换热 .经与光线踪迹法、离散传递法的计算结果比较表明 :提出的数值方法具有较高的精度 ;有限体积法适合辐射导热的多场耦合计算 ;对非灰介质建议选用谱带模型 ;并应考虑折射率对传热的影响
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| 关 键 词： | 辐射换热 有限体积法 谱带模型 散射性介质 多场耦合 辐射强度场 辐射传递方程 热扩散温度场 |
| 文章编号： | 0438-1157(2001)05-0434-06 |
| 修稿时间： | 1999-10-26 |
FINITE VOLUME METHOD FOR COUPLED RADIATION AND CONDUCTION IN SCATTERING NON-GRAY MEDIUM |
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| HE Zhihong,TAN Heping,LIU Linhua. FINITE VOLUME METHOD FOR COUPLED RADIATION AND CONDUCTION IN SCATTERING NON-GRAY MEDIUM[J]. Journal of Chemical Industry and Engineering(China), 2001, 52(5): 434-439 |
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| Authors: | HE Zhihong TAN Heping LIU Linhua |
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| Abstract: | By using the finite volume method and the spectral band model, the coupled radiative-conductive heat transfer is numerically simulated in an absorbing, emitting, scattering and non-gray medium.The results for a one-dimensional scattering medium and a two-dimensional, cylindrical medium are compared with the results by the ray tracing method and the discrete transfer method, respectively. It is shown that the finite volume method is precise and suitable for the coupled heat transfer of radiation and conduction. The effects of the spectral band model, refractivity and albedo on the coupled radiative-conductive heat transfer is investigated.The spectral band model is suggested for the non- gray medium and the influence of refractivity on heat transfer should be considered. |
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| Keywords: | radiative heat transfer finite volume method spectral band model scattering medium |
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