Modélisation du transfert de chaleur par rayonnement, conduction et convection : application aux fours verriers

Abstract : Study of coupled heat transfer through radiation, conduction and convection has been carried out and detailed in this PhD memory. Non grey semitransparent media at high temperatures are studied. Acute description of involved physical phenomena leads us to develop several numerical methods for such materials. Radiative heat transfer equation (RTE), Navier-Stokes equations and energy balance are solved with the finite volume method (FVM). Analytical solutions cannot be considered for such problems owing to their complexity. Besides numerical treatment induces necessary approximation in order to rewrite characteristical equations describing the real problem. In the case of RTE modelling a new differencing scheme has been proposed, on the other side Navier-Stokes transport equations are solved with a modified QUICK scheme. Both techniques ensure efficient modelling. The achieved simulation codes have been used for glass melting process description. An enhanced model describes a float glass furnace behaviour, from the material feeding to the refined glass extraction.
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Nacer Berour. Modélisation du transfert de chaleur par rayonnement, conduction et convection : application aux fours verriers. Autre. Université Henri Poincaré - Nancy 1, 2005. Français. ⟨NNT : 2005NAN10152⟩. ⟨tel-01754387⟩

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