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| Identification of multi-variables of inverse two-order transient heat conduction problems |
| Revised:April 21, 2006 |
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| DOI：10.7511/jslx20074084 |
| KeyWord:two-order transient heat conduction,bregman distances,homotopy method,precise algorithm,multi-variables |
| XUE Qi-wen YANG Hai-tian |
| 1. School of Traffic and Transportation, Dalian Jiaotong University, Dalian 116028, China; 2. State Key Laboratory of Industrial Equipment and Structural Analysis, Dalian University of Technology, Dalian 116023, China |
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| Abstract: |
| This paper presents a general numerical model to identify multi-variables of twoorder transient heat conduction problems and the homotopic method is employed to solve inverse problems based on Bregman D-Function.A time stepping scheme is used for transient analysis and the finite element model is given,facilitating to sensitivity analysis for direct and inverse problems.Combined identifications can be carried out for thermal parameters and boundary conditions etc.Satisfactory numerical validation is given including a preliminary investigation of effect of noise data and initial value on the results. |
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