Thermal behavior of ceramic particles in a gaseous medium at high temperature

Autor: AISSA Abderrahmane, ZAIM Abdel-Nour, SAHNOUN M, FARES Redouane, ABDELOUHAB M, EL GANAOUI Mohammed
Jazyk: English<br />French
Rok vydání: 2020
Předmět:
Zdroj: MATEC Web of Conferences, Vol 307, p 01056 (2020)
Druh dokumentu: article
ISSN: 2261-236X
DOI: 10.1051/matecconf/202030701056
Popis: 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.
Databáze: Directory of Open Access Journals