Title

Multi-dimensional heat flux reconstruction using narrow-band thermochromic liquid crystal thermography

Authors

Authors

A. J. Kassab; E. Divo;J. S. Kapat

Comments

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Abbreviated Journal Title

Inverse Probl. Eng.

Keywords

inverse problems; boundary elements; thermochromic liquid crystals; Engineering, Multidisciplinary; Mathematics, Applied

Abstract

An inverse algorithm is developed to reconstruct multi-dimensional surface heat flux using transient surface temperature measurements provided by narrow-band thermal liquid crystals (TLC) or phase-change material (PCM). In this thermographic technique, the information provided is the time it took a certain location to reach the characteristic temperature of the TLC or PCM. A quadratic functional to be minimized is formulated. The Levenberg-Marquardt method and genetic algorithms are used to minimize the functional. It is shown that GA'S can be used successfully to retrieve surface heat flux distributions with significant error in input times to arrival at the TLC or PCM critical temperature.

Journal Title

Inverse Problems in Engineering

Volume

9

Issue/Number

5

Publication Date

1-1-2001

Document Type

Article; Proceedings Paper

Language

English

First Page

537

Last Page

559

WOS Identifier

WOS:000173841500007

ISSN

1068-2767

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