针对CO_(2)-H_(2)O-CO-碳烟混合介质的全光谱相关k分布辐射模型在ANSYS-Fluent中的开发与验证  

Development and Validation of Full-spectrum Correlated-k Distribution Model in ANSYS-Fluent for CO_(2)-H_(2)O-CO-Soot Mixtures

作　　者：王龙 王良 曾琦 曹俊 任涛 WANG Long;WANG Liang;ZENG Qi;CAO Jun;REN Tao(China-UK Low Carbon College,Shanghai Jiao Tong University,Shanghai 201306,China;AECC Hunan Aviation Powerplant Research Institute,Zhuzhou 412002,Hunan Province,China)

机构地区：[1]上海交通大学中英国际低碳学院,上海201306 [2]中国航发湖南动力机械研究所,湖南株洲412002

出　　处：《动力工程学报》2024年第12期1819-1827,共9页Journal of Chinese Society of Power Engineering

基　　金：国家自然科学基金面上资助项目(52276077)。

摘　　要：为解决ANSYS-Fluent软件无法兼具高精度和高效率的辐射光谱模型问题,将基于查值表法和机器学习法的全光谱相关k分布(FSCK)模型进行二次开发并嵌入Fluent中,将其与内置的辐射传输方程(RTE)求解器耦合,用于常见燃烧气体和碳黑混合物的辐射换热计算。通过对一维平板以及2组不同火焰的辐射换热进行计算,并以逐线(LBL)模型为基准,与Fluent中自带的灰体气体加权和(WSGG)模型结果进行比较。结果表明:无论是否含碳黑,FSCK模型的计算结果均比自带的WSGG模型更加准确。To solve the problem of ANSYS-Fluent software being unable to provide both high-precision and high-efficiency radiation spectrum models,secondary development was carried out for the full-spectrum correlated-k distribution(FSCK)model based on look-up table method and machine learning method,and the model was embeded into Fluent and coupled with built-in radiative transfer equation(RTE)solvers for radiation heat transfer calculation for mintures of common combustion gases and soots.Radiation heat transfer results of one-dimensional slabs and two group of flames were calculated by the model,and using the line by line(LBL)model as a benchmark,which were compared with the results calculated by gray gas weighted sum(WSGG)model in Fluent.Results show that the FSCK model yields more accurate solutions than the built-in WSGG model in Fluent,regardless of the presence of soot.

关 键 词：FSCK WSGG 碳黑 RTE 辐射换热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]