| 半透明平板边界入射辐射热流密度的反问题 |
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| 引用本文： | 刘林华,谈和平,余其铮.半透明平板边界入射辐射热流密度的反问题[J].计算物理,1999,16(3):235-242. |
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| 作者姓名： | 刘林华 谈和平 余其铮 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院, 150001 |
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| 基金项目： | 国家自然科学基金及国家杰出青年科学基金资助项目 |
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| 摘 要： | 对一维半透明平板内辐射、导热及边界对流耦合换热过程进行了研究。提出了一种由一侧边界出射辐射强度反演另一侧边界入射辐射热流密度的方法。通过对各向异性散射、吸收系数、散射系数、边界外侧来流温度、对流换热系数、半透明平板的导热系数和平板厚度等参数对反演精度影响的分析表明,方法是可行的。
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| 关 键 词： | 辐射反问题 辐射热流密度 半透明平板 离散坐标法 共轭梯度法 |
| 收稿时间： | 1998-03-25 |
| 修稿时间： | 1998-09-28 |
Inverse problem of boundary incident radiation heat flux in semitransparent planar slab |
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| Liu Linhua,Tan Heping,Yu Qizheng.Inverse problem of boundary incident radiation heat flux in semitransparent planar slab[J].Chinese Journal of Computational Physics,1999,16(3):235-242. |
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| Authors: | Liu Linhua Tan Heping Yu Qizheng |
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| Institution: | School of Energy Science & Engineering, Harbin Institute of Technology, 150001 |
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| Abstract: | The coupled heat transfer processes of radiation, conduction and convection in semitransparent planar slab are analyzed. An inverse method is presented for estimating the unknown boundary incident radiation heat flux in semitransparent planar slab with transparent boundaries from the knowledge of the radiation intensities exiting the boundaries. The effects of anisotropic scattering, absorption coefficient, scattering coefficient, fluid temperature outside the boundaries, convection heat transfer coefficients, conduction coefficient of semitransparent media and slab thickness on the accuracy of the inverse analysis are investigated. The results show that this method is praticable. |
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| Keywords: | inverse radiative problem radiation heat flux semitransparent planar slab discrete ordinates method conjugate gradient method |
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