Development of a Generalized Zonal Method for Radiative Transfer in Anisotropically-Scattering Media

各向异性散射介质中辐射传输的广义分区方法的发展

• 批准号: 8915042
• 负责人: Walter Yuen
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915042&HistoricalAwards=false
• 关键词: Development; Generalized; Zonal; Method; Radiative

This program will develop a generalized zonal method (GZM) for the analysis of radiative heat transfer in multi-dimensional absorbing, emitting, and anisotropically scattering media. The effect of non-diffuse of non-diffuse reflecting surfaces will also be explored. The method to be used is a generalization of the "conventional zonal method", CZM, which was developed in fifties and has been the mainstay of practical calculations since then, with apparently little modification. State-of-the-art parallel processing computational capabilities will be exploited enabling the solution of the vastly more complicated generalized equations. The main product of this research will be a method of such accuracy that it will serve as a benchmark for other approximations which have been in use, although not adequately validated. The PI expects to generate some fundamental parameters based on a mean-beam-length concept which be useful for scaling model experiments to full-scale prototypes. The code developed will be critically compared with existing experimental data.

本程序将开发一种广义分区方法(GZM)，用于分析多维吸收、发射和各向异性散射介质中的辐射换热。还将探讨非漫反射表面的非漫反射效果。所采用的方法是“传统分区法”CZM的推广，CZM是50年代发展起来的，此后一直是实际计算的支柱，显然几乎没有修改。将利用最先进的并行处理计算能力，使之能够解决更复杂的广义方程。这项研究的主要成果将是一种精度如此之高的方法，它将作为其他已在使用的近似的基准，尽管没有得到充分的验证。PI期望根据平均光束长度的概念产生一些基本参数，这些参数对于将模型实验缩放到全尺寸原型是有用的。开发的代码将与现有的实验数据进行严格的比较。