The rank correlated FSK model for prediction of gas radiation in non-uniform media, and its relationship to the rank correlated SLW model
The rank correlated FSK model for prediction of gas radiation in non-uniform media, and its relationship to the rank correlated SLW model
复制标题
非均匀介质中气体辐射预测的秩相关 FSK 模型及其与秩相关 SLW 模型的关系
DOI：
10.1016/j.jqsrt.2018.04.026
复制
发表时间：
2018
影响因子：
2.3
通讯作者：
F. André
中科院分区：
文献类型：
--
作者：
V. Solovjov;B. W. Webb;F. André
基于秩相关谱的假设，提出了秩相关全谱k分布（RC-FSK）方法。该方法证明有利于模拟辐射传输在高温气体在非均匀介质中的两个重要方面。首先，也许是最重要的，该方法不需要规范的参考气体热力学状态。其次，RC-FSK模型的频谱构造更简单，仅需要两个累积k分布。此外，尽管不是详尽的，但是这里提出的示例问题表明，该方法还可以相对于现有方法产生改进的准确度，并且可以表现出对模型预测中使用的黑体源温度的较低敏感性。本文概述了RC-FSK方法的理论发展，比较了频谱结构与先前的相关频谱FSK方法公式。这项工作提出了使用新的秩相关FSK方法和以前的FSK方法在三个不同的例子问题的预测。逐行基准预测用于评估准确性。
Following previous theoretical development based on the assumption of a rank correlated spectrum, the Rank Correlated Full Spectrum k-distribution (RC-FSK) method is proposed. The method proves advantageous in modeling radiation transfer in high temperature gases in non-uniform media in two important ways. First, and perhaps most importantly, the method requires no specification of a reference gas thermodynamic state. Second, the spectral construction of the RC-FSK model is simpler, requiring only two cumulative k-distributions. Further, although not exhaustive, example problems presented here suggest that the method may also yield improved accuracy relative to prior methods, and may exhibit less sensitivity to the blackbody source temperature used in the model predictions. This paper outlines the theoretical development of the RC-FSK method, comparing the spectral construction with prior correlated spectrum FSK method formulations. The work presents predictions using the new Rank Correlated FSK method and previous FSK methods in three different example problems. Line-by-line benchmark predictions are used to assess the accuracy.