Title
Characterization of space dependent thermal conductivity with a BEM-based genetic algorithm
Abbreviated Journal Title
Numer. Heat Tranf. A-Appl.
Keywords
BOUNDARY INTEGRAL-EQUATION; IR-CAT METHOD; HEAT-CONDUCTION; INVERSE; PROBLEM; STEADY-STATE; SUBSURFACE CAVITIES; ELEMENT METHOD; TRANSIENT; HYDROLOGY; MEDIA; Thermodynamics; Mechanics
Abstract
An inverse boundary element method is developed to characterize the spatially dependent conductivity k(x) of heterogeneous materials. Surface measurements at exposed boundaries serve as additional input to a genetic algorithm (GA) minimizing a regularized functional measuring the difference between observed and boundary element method (BEM)-predicted surface temperatures under current conductivity estimates. Analytical integration for a given estimate of k(x) provides explicit evaluation of influence coefficients, and series expansions are used to approximate integrands in expressions for these coefficients. Numerical integration is performed just once, a significant speedup in updates of the functional in evolution of the GA.
Journal Title
Numerical Heat Transfer Part a-Applications
Volume
37
Issue/Number
8
Publication Date
1-1-2000
Document Type
Article
Language
English
First Page
845
Last Page
875
WOS Identifier
ISSN
1040-7782
Recommended Citation
"Characterization of space dependent thermal conductivity with a BEM-based genetic algorithm" (2000). Faculty Bibliography 2000s. 2496.
https://stars.library.ucf.edu/facultybib2000/2496
Comments
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