Three-dimensional (3D) inverse heat flux evaluation based on infrared thermography

Jorge Fernandes Lopes Sousa, Sergio Lavagnoli, Guillermo Paniagua, Laura Villafane Roca

Research output: Contribution to journalArticle

Abstract

Inverse methods in heat transfer are generally associated with the estimation of unknown heat fluxes on inaccessible surfaces, based on temperature measurements performed on the accessible walls. In the present application, an inverse heat conduction method was developed that uses temperature measurements performed by infrared thermography. The threedimensional (3D) transient inverse heat transfer problem was solved by using an iterative regularisation with a conjugate gradient method. The inverse solver was coupled with a finite element commercial code. The efficiency of the method was demonstrated through numerical simulations and experimentally validated in a simplified set-up.

Original languageEnglish (US)
Pages (from-to)177-191
Number of pages15
JournalQuantitative InfraRed Thermography Journal
Volume9
Issue number2
DOIs
StatePublished - Jan 1 2012
Externally publishedYes

Keywords

  • Heat Transfer
  • Infrared Thermography
  • Inverse Heat Conduction Methods

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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