شماره ركورد كنفرانس :
5048
عنوان مقاله :
ANALYSIS OF NATURAL CONVECTION IN SQUARE ENCLOSURE WITH TWO ISOTHERMAL DISCRETE HEAT SORCES ON OPPOSITE VERTICALWALLS
Author/Authors :
A. P ،Haghighi Department of Mechanical Engineering - Faculty of Engineering - Tarbiat Modares University - Tehran, Iran , N ،Gilani Department of Chemical Engineering - Faculty of Engineering - Tarbiat Modares University - Tehran, Iran , M. M ،Moharrer Department of Mechanical Engineering - Faculty of Engineering - University of tehran - Tehran, Iran
كليدواژه :
analysis , natural convection , discrete hot sources
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
In this paper, analysis is carried out in order to investigate the effects of heat sources location on opposite vertical walls on heat
transfer. The vertical walls are isothermally heated, while the horizontal walls are adiabatic. The two-dimensional unsteady problem is
solved by means of the stream function–vorticity approach and the numerical solution is carried out by means of the finite difference
technique. Results are obtained for Rayleigh number of 105. The results show that the required time to reach steady state condition is
minimized when two heat sources are located on top of the walls. The finding also show that the average temperature of the fluid inside
the enclosure reach to maximum value when the hot source on cool wall is located at the 0.2 £ Y£ 0.4 .
