CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2006, Vol. 23 ›› Issue (2): 151-157.

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An Inverse Heat Conduction Problem with Multi-variables in a Transient State with a Homotopic Regularization Method

XUE Qi-wen1, YANG Hai-tian1, DU Xiu-yun2   

  1. 1. Dept. of Engineering Mechanics, Dalian University of Technology, State Key Lab of Structural Analysis for Industrial Equipment, Dalian 116023, China;
    2. Dept. of Physics, Liaoning Normal University, Dalian 116023, China
  • Received:2004-12-13 Revised:2005-05-11 Online:2006-03-25 Published:2006-03-25

Abstract: Taking Bregman D-Function as a regularization function, we present a general numerical model to identify the multi-variables, including thermal parameters and boundary conditions. A time stepping scheme is used for the transient analysis and a homotopy method is adopted to solve the process. Both the data with measurement errors and the initial value are used to indentify these parameters. The numerical validation exhibits good results.

Key words: regularization, homotopy method, precise algorithm, multi-variables, inverse problem

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