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Benchmark Solutions of Three-Dimensional Radiative Transfer in Nongray Media Using Line-by-Line Integration

机译:Nongray介质中三维辐射传递的逐行积分基准解决方案

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摘要

Nongray gas radiation calculations are conducted for four three-dimensional benchmarks using line-by-line (LBL) integration with the up-to-date high-resolution spectroscopic database HITEMP 2010. The radiative transfer equation (RTE) is solved using the finite volume method (FVM) over each wavenumber interval of the spectrum. A detailed mesh quality analysis assured the mesh independence of the solution. Accurate results for distributions of volumetric radiative heat source term and wall radiative heat flux are provided for four cases: (i) an isothermal pure water vapor medium at 1000 K; (ii) an isothermal and nonhomogeneous H_2O-N_2 mixture at 1000 K; (iii) a nonisothermal and homogeneous CO_2-H_2O-N_2 mixture; and (iv) a nonisothermal and nonhomogeneous CO_2-H_2O-N_2 mixture. These data can be useful to assess the accuracy of gas radiative property models.
机译:使用逐行(LBL)集成和最新的高分辨率光谱数据库HITEMP 2010对四个三维基准进行Nongray气体辐射计算。使用有限体积求解辐射传递方程(RTE)方法(FVM)在频谱的每个波数间隔上。详细的网格质量分析确保了解决方案的网格独立性。提供了四种情况下的体积辐射热源项和壁辐射热通量分布的准确结果:(i)1000 K的等温纯水蒸气介质; (ii)在1000 K下等温且不均匀的H_2O-N_2混合物; (iii)非等温且均匀的CO_2-H_2O-N_2混合物; (iv)非等温和不均匀的CO_2-H_2O-N_2混合物。这些数据可用于评估气体辐射特性模型的准确性。

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  • 来源
    《Journal of Heat Transfer》 |2020年第3期|034501.1-034501.4|共4页
  • 作者单位

    Department of Mechanical Engineering Universidade Federal do Rio Grande do Sul Porto Alegre RS 90050-170 Brazil;

    Department of Civil Engineering Aalto University Espoo 02150 Finland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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