An iterative regularization method in estimating the unknown energy source by laser pulses with a dual-phase-lag model

Cheng Hung Huang, Chien Yu Lin

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

In the present study an inverse problem for hyperbolic heat conduction with a dual-phase-lag model is solved by the conjugate gradient method (CGM) in estimating the unknown heat generation, due to the ultra-short duration laser heating, based on the interior temperature measurements. Results obtained in this inverse problem will be justified based on the numerical experiments where two different heat source distributions are to be estimated. Results show that the inverse solutions can always be obtained when choosing the initial guesses of the heat sources equal to zero. Finally, it is concluded that accurate heat sources can be estimated in this study.

Original languageEnglish
Pages (from-to)108-126
Number of pages19
JournalInternational Journal for Numerical Methods in Engineering
Volume76
Issue number1
DOIs
Publication statusPublished - 2008 Oct 1

All Science Journal Classification (ASJC) codes

  • Numerical Analysis
  • Engineering(all)
  • Applied Mathematics

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