MATEC Web Conf.
Volume 330, 2020International Conference on Materials & Energy (ICOME’19)
|Number of page(s)||4|
|Published online||01 December 2020|
Numerical study of the coupled natural convection with surface radiation in a cylindrical annular enclosure
1 Laboratory Numerical and Experimental Modeling of Mechanical phenomena, Mechanical Engineering Department, Abdelhamid Ibn Badis University, Mostaganem, Algeria
2 Mechanical Engineering Department, Mustapha Stambouli University, Mascara, Algeria
3 Laboratoire de Physique Quantique de la Matière et Modélisation Mathématique (LPQ3M), Mustapha Stambouli University, Mascara, Algeria
4 Laboratoire énergétique de Longwy (FJV/LERMAB), Université de Lorraine, France
* Corresponding author: firstname.lastname@example.org
The interaction of natural convection with thermal radiation of black surfaces in a cylindrical enclosure filled with air has been numerically investigated. The steady-state continuity, Navier-Stokes and energy equations were discretized using the control volume method and solved numerically via the SIMPLER algorithm. Effects of Rayleigh number (Ra), wall emissivity (εp) and height ratio parameter (X) are studied. The result shows that surface radiation significantly altered the temperature distribution and the flow patterns, especially at higher Rayleigh numbers. The total average Nusselt number has also been discussed for valuating heat transfer through the enclosure.
© The Authors, published by EDP Sciences, 2020
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