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通过DRESOR(被边界吸收或介质散射的能量分布)法揭示了一维辐射传递过程中可能存在的温度交点的现象,并对该现象进行了分析研究.研究结果证实其原因是在交点处存在着辐射传递的完整对称性,使得该点处辐射平衡温度不受其他参数变化的影响.空间介质中心两侧光线传递完全对称条件下才可能出现该交点现象,而介质的各向同性散射反照率和梯度折射率分布对交点的位置无影响.若介质两侧壁面发射率相等,则发射率值的大小对交点的位置无影响;若两壁面发射率不等,则交点会向发射率较大的一侧移动.此外,两壁面的温度只影响辐射平衡时交点处的温度,对交点的位置无影响.
The phenomena of one-dimensional radiative transfer through the DRESOR (absorbed by the boundary or the energy distribution of the medium scattering) reveal the phenomenon of temperature crossover point, and the phenomenon was analyzed. The results confirm that the reason exists at the intersection The complete symmetry of radiation transmission makes the radiation equilibrium temperature at that point unaffected by the changes of other parameters.The phenomenon of this intersection may occur under the condition of complete symmetry of light transmission on both sides of the center of the medium and the medium isotropic scattering albedo and Gradient refractive index distribution has no influence on the position of the intersection point.If the emissivity of the wall on both sides of the medium is equal, the emissivity value has no influence on the position of the intersection point. If the emissivities of two walls are not equal, In addition, the temperature of the two walls only affects the temperature at the point of intersection at the time of radiation balance, and has no effect on the location of the intersection.