A three-dimensional inverse geometry problem in identifying irregular boundary configurations

Cheng-Hung Huang, Meng Ting Chaing

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A three-dimensional inverse geometry problem (shape identification problem) in determining the unknown irregular surface configurations by utilizing the conjugate gradient method (CGM) and a general purpose commercial code CFD-RC is successfully developed and examined in this study based on the simulated measured temperature distributions on the bottom surface by infrared thermography. Results obtained by using the technique of CGM to solve the inverse geometry problem are justified based on the numerical experiments. Three test cases are performed to test the validity of the present algorithm by using different types of surface shapes, initial guess and measurement errors. Results show that excellent estimations on the unknown surface geometry can be obtained with any arbitrary initial guesses.

Original languageEnglish
Pages (from-to)502-513
Number of pages12
JournalInternational Journal of Thermal Sciences
Volume48
Issue number3
DOIs
Publication statusPublished - 2009 Mar 1

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conjugate gradient method
Conjugate gradient method
Geometry
geometry
configurations
surface geometry
charge flow devices
temperature distribution
Measurement errors
Computational fluid dynamics
Temperature distribution
Experiments

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Condensed Matter Physics

Cite this

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abstract = "A three-dimensional inverse geometry problem (shape identification problem) in determining the unknown irregular surface configurations by utilizing the conjugate gradient method (CGM) and a general purpose commercial code CFD-RC is successfully developed and examined in this study based on the simulated measured temperature distributions on the bottom surface by infrared thermography. Results obtained by using the technique of CGM to solve the inverse geometry problem are justified based on the numerical experiments. Three test cases are performed to test the validity of the present algorithm by using different types of surface shapes, initial guess and measurement errors. Results show that excellent estimations on the unknown surface geometry can be obtained with any arbitrary initial guesses.",
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A three-dimensional inverse geometry problem in identifying irregular boundary configurations. / Huang, Cheng-Hung; Chaing, Meng Ting.

In: International Journal of Thermal Sciences, Vol. 48, No. 3, 01.03.2009, p. 502-513.

Research output: Contribution to journalArticle

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