Thermal diffusivity identification based on an iterative regularization method

Lamia Attar (1) , Laetitia Perez (2) , Rémy Nouailletas (3) , Emmanuel Moulay (4) , Laurent Autrique (1)

1 LARIS - Laboratoire Angevin de Recherche en Ingénierie des Systèmes
2 LTN - Laboratoire de thermocinétique [Nantes]
3 IRFM - Institut de Recherche sur la Fusion par confinement Magnétique
4 XLIM-ASALI - Synthèse et analyse d'images

This article deals with the identification of a space and time dependent material thermal diffusivity. Such parameter is involved in heat transfers described by partial differential equations. An iterative regularization method based on a conjugate gradient algorithm is implemented. Such approach is attractive in order to efficiently deal with measurement noises and model errors. Numerical results are illustrated according to several simulations.

Domaines: Automatique / Robotique

Lamia Attar, Laetitia Perez, Rémy Nouailletas, Emmanuel Moulay, Laurent Autrique. Thermal diffusivity identification based on an iterative regularization method. 54th IEEE Conference on Decision and Control, Dec 2015, Osaka, Japan. pp.6, ⟨10.1109/CDC.2015.7402322⟩. ⟨hal-01258555v3⟩