二维燃烧系统气体发热量的确定

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，辐射热负荷反问题也能得到较准确的结果。

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

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.