ABSTRACT
In this paper, a complete cooling model composed of a double-entry centrifugal fan and a longitudinal-plate heat sink is shown in Figure 1. The numerical results of the system are investigated
1 INTRODUCTION
Increases in the power dissipation rate from microprocessors and other VLSI modulus have led to the use of fan-sink assemblies for air-cooling these components. Due to the complexity of the coupled system, the performance of a fan and a heat sink are investigated separately. Lin and Huang (2002) studied the small centrifugal fan by using the CFD (Computational Fluid Dynamics) program STAR-CD. The influence of the parameters of turbulence model on the performance of a fan was not investigated. Morrisn (1992) investigated the optimization of heat sink fin geometries for heat sinks in natural convection by using the numerical methods. Azar and Mandrone (1994) examined experimentally the effect of pin fin density on thermal resistance. Ledezma and Bejan (1996) studied the sloped plate fins in natural and forced convection. Shaukatullah et al. (1996) investigated the influence of parameters of fin on thermal resistance in the low flow velocity. Sikka et al. (2002) examined experimentally the nine kinds of heat sinks in their investigation. Wirtz et al. (1997, 1998, 2001) explored experimentally the heat Figure 1. Fan-sink assembly.
