Abstract
Fire-induced decomposition of composite materials involves complex and coupled multi-physics phenomena. The modelling of such configuration presents significant challenges. In this article, we present a numerical modelling of the interaction between a turbulent propane/air premixed flame with a composite-made flat plate and its validation against detailed experimental measurements. The simulation aspects include combustion modelling, thermochemical behavior of the decomposing composite plate, as well as heat and mass transfer at the fluid/solid interface. The validation of this innovative approach is performed with an experimental database obtained on a dedicated test bench using a propane burner characterized with several optical measurement techniques including PIV (Particle Image Velocimetry), OH* imagery and BOS (Background Oriented Schlieren). Numerical results show a good correlation between simulated flame characteristics and measurements on the one side and between the composite heating dynamics and IR-thermography measurements on the other side, assessing the overall consistency of the approach proposed.
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