Author Affiliations
1School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China2Beijing Key Laboratory of Energy Conservation and Emission Reduction for Metallurgical Industry, Beijing 100083, China3School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, Chinashow less
Fig. 1. (a) Spatial mesh; (b) sketch of numerical flux across the adjacent elements.(a)空间网格; (b)相邻单元间数值通量示意图
Fig. 2. Dimensionless temperature T/Tb along the symmetry line x/L = 0.5 for the cases: (a) Different spatial discretization schemes; (b) different angular discretization schemes.
方形介质对称线x/L = 0.5上无量纲温度T/Tb分布 (a)不同空间网格划分; (b)不同角度划分
Fig. 3. Comparison of dimensionless temperature along the square medium symmetry line x/L = 0.5 obtained by DFEM and DTM for the cases: (a) Different Planck numbers; (b) different scattering albedos.
方形介质对称线x/L = 0.5上无量纲温度的DFEM结果和DTM结果对比 (a)不同普朗克数; (b)不同散射反照率
Fig. 4. Comparison of dimensionless temperature along the square medium symmetry line x/L = 0.5 obtained by different numerical methods.
不同数值方法得到的方形介质对称线上的无量纲温度对比
Fig. 5. Semicircle medium with an inner circle hot boundary: (a) Geometry sketch; (b) spatial discretization.内含圆形热壁面的半圆形介质 (a)结构示意图; (b)网格划分
Fig. 6. Temperature distributions along the symmetric line of the semicircle medium obtained by different numerical algorithms: (a) y = [0.0, 0.2]; (b) y = [0.6, 1.0].
不同数值方法得到的半圆介质对称线上温度分布 (a) y = [0.0, 0.2]; (b) y = [0.6, 1.0]
Fig. 7. Total flux distributions along the bottom boundary of the semicircle medium under the situations with different Plank numbers: (a) Npl = 0.1; (b) Npl = 1.0.
不同普朗克数条件下半圆介质底边上总热流密度分布 (a) Npl = 0.1, (b) Npl = 1.0
Fig. 8. Irregular medium with an inner hot boundary: (a) Geometry sketch; (b) spatial discretization.内含圆形热边界的非规则形状介质 (a)结构示意图; (b)网格划分
Fig. 9. (a) Temperature distributions along the centerline of the irregular medium with an inner hot boundary; (b) temperature distribution within the computation domain for the case of Npl = 0.1; (c) temperature distribution within the computation domain for the case of Npl = 1.0.
(a)普朗克数Npl = 0.1和1.0时内含圆形热边界的非规则形状介质中线上温度分布; (b) Npl = 0.1时介质温度分布; (c) Npl = 1.0时介质温度分布
Fig. 10. The medium the square medium with two circular hot boundaries: (a) Geometry sketch; (b) spatial discr etization.内含两个圆形热边界的矩形介质 (a)结构示意图; (b)网格划分
Fig. 11. (a) Temperature distributions along the centerline of the square medium with two circular hot boundaries; (b) temperature distribution within the computation domain for the case of Npl = 0.1; (c) temperature distribution within the computation domain for the case of Npl = 1.0
(a)普朗克数Npl = 0.1和1.0时内含两个圆形热边界的矩形介质中线上温度分布; (b) Npl = 0.1时介质温度分布; (c) Npl = 1.0时介质温度分布