CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2005, Vol. 22 ›› Issue (1): 56-60.

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A Conjugate Gradient Method for Inverse Heat Conduction Problems with Multi-variables in Transient-state

XUE Qi-wen, YANG Hai-tian, HU Guo-jun   

  1. State Key Lab of Structural Analysis of Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
  • Received:2003-09-07 Revised:2004-06-01 Online:2005-01-25 Published:2005-01-25

Abstract: A general numerical model is presented to identify multi_variables,including thermal parameters and boundary conditions for inverse heat conduction problems in transient state.Sensitivity formulas are derived.A conjugate gradient technique is employed.The effects of the number of sample points,the data noise and initial guess on solutions are given.A numerical calculation is performed and discussed.

Key words: heat conduction, multi-variables, inverse problems, conjugate gradient method, finite element

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