基于ISPSO的半透明介质中多种辐射特性参数反演  

Retrieval of Heat Radiative Property Parameters in Semitransparent Media Using Improved Stochastic Particle Swarm Optimization

作　　者：方弘毅 蒋新宇 贺振宗 王登奎 毛军逵[3] 陈涛 FANG Hongyi;JIANG Xinyu;HE Zhenzong;WANG Dengkui;MAO Junkui;CHEN Tao(AECC Sichuan Gas Turbine Establishment,Mianyang 621000,P.R.China;School of Power and Energy,Northwestern Polytechnical University,Xi’an 710129,P.R.China;College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,P.R.China)

机构地区：[1]中国航发四川燃气涡轮研究院,中国绵阳621000 [2]西北工业大学动力与能源学院,西安710129 [3]南京航空航天大学能源与动力学院,中国南京210016

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2023年第1期37-46,共10页南京航空航天大学学报（英文版）

基　　金：supported by the Aeronautical Science Foundation of China(No.201928052002);Fundamental Research Funds for the Central Universities(No.NT2021007)。

摘　　要：半透明介质广泛存在于工业和化工设备中,其热辐射特性在研究介质传热过程中起着重要作用。本文提出了一种改进的随机粒子群优化(Stochastic particle swarm optimization,ISPSO)算法,从角度光散射测量信号中反演半透明介质的热辐射特性参数,即吸收系数、散射系数和不对称系数。研究结果表明,与随机粒子群算法(Stochastic particle swarm optimization,SPSO)相比,ISPSO算法避免了局部最优和收敛精度低的现象,即使在5%的随机测量误差下也能获得合理的检索结果。当只需要研究两个参数时,反结果的鲁棒性是令人满意的。当反演的参数较多时,反演精度会降低。此外,在5%随机测量误差下,同时反演多个辐射特性参数时,即吸收系数、散射系数和不对称因子,本文提供的方法仍能得到满意的结果。结果表明,本文提供的反演方法是一种有效可靠的方法,可以同时估计半透明介质中的多个辐射特性参数。Semitransparent media widely exist in industrial and chemical equipment,and their heat radiative properties usually play a vital role in studying the heat transfer process in the media.In the paper,an improved stochastic particle swarm optimization(ISPSO)is proposed to determine heat radiative property parameters of semitransparent media,i.e.absorption coefficient,scattering coefficient and asymmetry factor,from the angular light-scattering measurement signals.The results show that compared with the stochastic particle swarm optimization(SPSO)algorithm,the ISPSO algorithm can avoid the phenomenon of local optima and low convergence accuracy,and reasonable retrieval results can be obtained even with 5%random measurement errors.Moreover,the robustness of the inverse results is satisfactory when there are only two parameters needed to be studied.The inverse accuracy will be decreased when more parameters needed to be retrieved.However,the results are still acceptable even with 5%random measurement errors,when the absorption coefficient,scattering coefficient and asymmetry factor are retrieved simultaneously.All the results confirm that the proposed technique is an effective and reliable technique in estimating multiple radiative property parameters in semitransparent media simultaneously.

关 键 词：辐射反问题 辐射特性参数 改进的随机微粒群算法 半透明介质 光角度散射测量方法 

分 类 号：TK123[动力工程及工程热物理—工程热物理]