Solution of the inverse radiative load problem in a two-dimensional system

• Published in: Journal of quantitative spectroscopy & radiative transfer Vol. 74; no. 1; pp. 85 - 95
• Main Authors: Fan, Hongwu, Li, Bingxi, Yang, Lidan, Wang, Ruzhu
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.07.2002
• Subjects: Conjugate gradient method; Inverse radiation problem; Monte Carlo method; Singular value decomposition method; Conjugate gradient method; Inverse radiation problem; Monte Carlo method; Singular value decomposition method
• ISSN: 0022-4073; 1879-1352
• DOI: 10.1016/S0022-4073(01)00254-0

An inverse radiation analysis is presented for estimating the temperature and the heat load distributions of the heating surface from the temperature and the heat flux measurements of the heated object. The Monte Carlo method is employed to solve the direct radiation problem. The inverse radiation problem is solved using the conjugate gradient and singular value decomposition methods. The measured data are simulated by adding random errors to the exact solution of the direct problem. The effects of the measurement errors on the accuracy of the inverse analysis are investigated. The study shows that the heat load distribution of the heating surface can be estimated accurately for the exact and noisy data. And the conjugate gradient method is better than the singular value decomposition method since the former can obtain more accurate results if the measurement errors are the same.