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

    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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