Abstract
The present work investigates, by means of numerical simulations, conjugate heat transfer effects inside a computer chassis. The numerical simulations were conducted by the FLUENT commercial Computational Fluid Dynamics (CFD) software. The solution was obtained by solving the Navier-Stokes equations in a three dimensional computational domain. A validation case (with experimental data available) was used to determine which Reynolds-averaged turbulence (RANS) model is suited for the aforementioned configurations. The comparison with the experimental values of velocity and temperature profiles were in favour of the standard k-e model. Regarding the study of a computer chassis, emphasis was given to the key components, such as the Central Processing Unit (CPU), which is cooled using fans. Several cooling schemes were studied based on available commercial configurations. The numerical results of temperature distribution on the heat sources and the air streamlines were analysed in order to evaluate each case and find out if there is a satisfaction of the operating conditions. In addition, through the CFD process, the problematic areas are revealed in order to consider improvements. The present study also introduces cooling schemes that could be beneficial for applications where cooling of electronic components is needed.
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