Resolution D’un Probleme Inverse Tridimensionnel Instationnaire Par Une Methode Sequentielle Avec Reduction Des Modes Et Mesure Par Thermographie Infrarouge

A three-dimensional unsteady inverse model has been developed in order to compute heat fluxes and surface temperature in various configurations. Temperature measurements are taken backside using infrared thermography. The number of unknown parameters is reduced using a discrete cosine transform analysis and by canceling values lower than a prescribed level. The efficiency of the method is proved through numerical simulations. A laboratory experiment has also been performed.