MATEC Web Conf.
Volume 307, 2020International Conference on Materials & Energy (ICOME’17 and ICOME’18)
|Number of page(s)||5|
|Published online||10 February 2020|
Thermal behavior of ceramic particles in a gaseous medium at high temperature
1 Laboratoire de Physique Quantique de la Matière et Modélisation Mathématique (LPQ3M), Université Mustapha Stambouli de Mascara, Algeria
2 Lorraine Universities, Energetic Laboratory of Longwy (FJV/LERMAB), Henri Poincaré Institute of Longwy, France
3 Laboratoire de Modélisation & Optimisation des Systèmes Industriels, Université des Sciences et de la Technologie - Mohammed Boudiaf - BP 1505 - Oran – Algérie
Numerical simulation of the interaction between the spherical particle and plasma gas is carried out. The aim of this study is to investigatethermal transfer between the plasma gas and solid particle during the plasma spray process and to validate the well-known empirical correlation of the Ranz and Marshall. In the conditions of molten or semi-molten states of prepared substrate, the medium (plasma jet) can affect the high velocities of particles. On the basis of direct numerical simulation, the computational analysis has been carried out by using computational fluid dynamics (CFD) of heat transfer in atmospheric pressure and mid-temperature range (3000k–12000k) of a plasma flow over a spherical particle. Our proposed model improves correlation with experiments compared to the existing approaches in the literature.
© The Authors, published by EDP Sciences, 2020
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