二维燃烧系统气体发热量的确定  

Estimation of Distributions of the Heat Release in Gas Region within Two-Dimensional Combustion with an Inverse Radiative Analysis

作　　者：范宏武[1] 李炳熙[1] 杨励丹[1] 李宏 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《燃烧科学与技术》2002年第1期75-79,共5页Journal of Combustion Science and Technology

摘　　要：开发了一种求解二维燃烧系统气体发热量和气体温度分布的辐射热负荷反问题的新方法——蒙特卡罗法、共轭梯度法和最小二乘法相结合的方法。讨论了气体吸收系数、固体表面发射率和对流传热系数对反问题计算结果的影响。结果表明 ,即使测量误差存在 。An inverse problem to estimate the distributions of the heat release and temperature in the gas region based on the information of the temperature and heat flux profiles of wall elements in the system are presented in this paper.A new procedure based on the Monte Carlo,Least Squares and Conjugate Gradient methods in studied.The effects of the errors of absorption coefficient,emissivity and convective heat transfer coefficient on the accuracy of the inverse analysis are investigated.The results show that the present technique is robust and yields accurate estimation even with noisy measurement.

关 键 词：气体发热量 蒙特卡洛法 共轭梯度法 最小二乘法 燃烧系统 气体温度 辐射热负荷 反问题 

分 类 号：TK16[动力工程及工程热物理—热能工程]