TITLE:
Improvment of Free Convection Heat Transfer Rateof Rectangular Heatsink on Vertical Base Plates
AUTHORS:
HamidReza Goshayeshi, Mahdi Fahiminia, Mohammad Mahdi Naserian
KEYWORDS:
Natural Convection, Vertical Surfaces, Simple Algorithm, Rectangular Fins
JOURNAL NAME:
Energy and Power Engineering,
Vol.3 No.4,
September
27,
2011
ABSTRACT: In this paper, the laminar heat transfer of natural convection on vertical surfaces is investigated. Most of the studies on natural convection have been considered constantly whereas velocity and temperature domain, do not change with time, transient one are used a lot. Governing equations are solved using a finite volume approach. The convective terms are discretized using the power-law scheme, whereas for diffusive terms the central difference is employed. Coupling between the velocity and pressure is made with SIMPLE algorithm. The resultant system of discretized linear algebraic equations is solved with an alternating direction implicit scheme. Then a configuration of rectangular fins is put in different ways on the surface and heat transfer of natural convection on these surfaces without sliding is studied and finally optimization is investigated.