Numerical Modeling of Natural Convection Heat Transfer from a Horizontal Torus

Journal Article
Zeitoun, O. . 2014
المجلة \ الصحيفة: 
Numerical Heat Transfer, Part A: Applications
رقم العدد: 
9
رقم الإصدار السنوي: 
65
مستخلص المنشور: 

Laminar natural convection heat transfer from torus is numerically investigated for two conditions; having isothermal surface or being uniformly heated.  Tori with different diameter ratios are examined under laminar conditions. The computational procedure is based on the finite volume technique.  Results are presented in the form of velocity and temperature contour plots around the perimeter of the torus. Heat transfer data are generated and presented in terms of the average Nusselt number versus Rayleigh or modified Rayleigh number. General correlations of Nusselt numbers in terms of a wide range of the modified Rayleigh numbers are obtained to cover two different heating conditions.