Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
BAYESIAN ESTIMATION OF A TIME DEPENDENT INTERNAL HEAT SOURCE IN A HETEROGENEOUS MEDIA
Submission Author:
Carolina Palma Naveira Cotta , RJ
Co-Authors:
Kelvin Chen, Christopher Tostado, Philippe Rollemberg d'Egmont, Fernando Pereira Duda, Antônio da Cruz
Presenter: Kelvin Chen
doi://10.26678/ABCM.ENCIT2016.CIT2016-0466
Abstract
The present work is aimed to demonstrate the solution of an inverse heat conduction problem dealing with the estimation of an internal heat source in a multi layer heterogeneous media, based on temperature measurements at the external surface. For the direct problem, a one-dimensional model based on the thermal resistance analogy was used. The inverse problem is solved with a Bayesian approach that is basically concerned with the analysis of the posterior probability density, which is the conditional probability of the parameters given the measurements. Simulated temperature measurements are used in the inverse analysis in order to show the capabilities of the proposed approach, and then a real experimental data is used to demonstrate the feasibility of the proposed methodology. The experimental results are provided via non-intrusive infrared thermography.
Keywords
Inverse analysis, heterogeneous media, Approximation Error Model
