热科学学报（英文版）2009，Vol.18Issue(2)：150-159,10.DOI:10.1007/s11630-009-0150-1
Inverse Heat Transfer Problem of Thermal Contact Conductance Estimation in Periodically Contacting Surfaces
Inverse Heat Transfer Problem of Thermal Contact Conductance Estimation in Periodically Contacting Surfaces
M. H. Shojaeefard 1K. Goudarzi 1M. Sh. Mazidi1
作者信息
- 1. Dept. of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
- 折叠
摘要
Abstract
The problems involving periodic contacting surfaces have different practical applications. An inverse heat con-duction problem for estimating the periodic Thermal Contact Conductance (TCC) between one-dimensional, con-stant property contacting solids has been investigated with conjugate gradient method (CGM) of function estima-tion. This method converges very rapidly and is not so sensitive to the measurement errors. The advantage of the present method is that no a priori information is needed on the variation of the unknown quantities, since the so-lution automatically determines the functional form over the specified domain. A simple, straight forward tech-nique is utilized to solve the direct, sensitivity and adjoint problems, in order to overcome the difficulties associ-ated with numerical methods. Two general classes of results, the results obtained by applying inexact simulated measured data and the results obtained by using data taken from an actual experiment are presented. In addition,extrapolation method is applied to obtain actual results. Generally, the present method effectively improves the exact TCC when exact and inexact simulated measurements input to the analysis. Furthermore, the results ob-tained with CGM and the extrapolation results are in agreement and the little deviations can be negligible.关键词
thermal contact/inverse problem/conjugates gradient methodKey words
thermal contact/inverse problem/conjugates gradient method分类
数理科学引用本文复制引用
M. H. Shojaeefard,K. Goudarzi,M. Sh. Mazidi..Inverse Heat Transfer Problem of Thermal Contact Conductance Estimation in Periodically Contacting Surfaces[J].热科学学报（英文版）,2009,18(2):150-159,10.
