工业热炉膛内热辐射场分析及反演重建  

Analysis and Reconstruction of Thermal Radiation Field in Industrial Furnace

作　　者：禹健[1] 刘鑫[1] 安永泉[2] YU Jian;LIU Xin;AN Yongquan(School of Automation and Software Engineering, Shanxi University, Taiyuan 030006, China;School of Information and Communication Engineering, North University of China, Taiyuan 030051, China)

机构地区：[1]山西大学自动化与软件学院,山西太原030006 [2]中北大学信息与通信工程学院,山西太原030051

出　　处：《测试技术学报》2022年第4期353-360,共8页Journal of Test and Measurement Technology

基　　金：“十三五”全军共用信息系统装备专用技术预先研究资助项目(31512080305)。

摘　　要：针对工业热炉炉膛内燃烧火焰高温多维非均匀湍流介质的热辐射特性,研究其分布机理与解算方法.基于CFD数据代表的空间栅格进行网格定位,根据其中气体组分的辐射机制得到栅格辐射强度;通过计算虚拟射线踪迹上的流场气动热辐射强度,推衍出探测视场内非均匀介质组分多波段炉膛热辐射场计算模型.提出弱表层马尔可夫模型,将热辐射场计算结果作为初始条件和参数确定依据,基于多帧炉膛红外探测图像,迭代反衍直至矢量平均余弦相似度小于阈值,从而复原重建炉膛热辐射场,形成高温非均匀流场热辐射特性分析体系.It is necessary to analyze the thermal radiation characteristics of multi-dimensional heterogeneous turbulent medium at high temperature.Grid positioning is carried out based on each spatial grid represented by CFD data.The radiation intensity of the grid is obtained,according to the radiation mechanism of the gas components.With the aerodynamic thermal radiation intensity of the flow field on the virtual ray trail,a computation model is developed to detect the inhomogeneous media components and the multispectral thermal radiation field in the furnance.In the proposed Weak Membrane Markov Random Field(WMMRF)model,the calculation results of thermal radiation field are taken as the initial conditions and the basis for determining parameters.The furnace thermal radiation field is reconstructed based on multiple infrared detection images,which iterate until the average vector cosine similarity is less than the threshold.The heat radiation characteristic analysis system of high temperature non-uniform flow field is formed.

关 键 词：炉膛热辐射场 辐射传递 图像复原 降晰函数辨识 

分 类 号：TK124[动力工程及工程热物理—工程热物理]