Title :
Numerical modeling of high-performance metallic fibrous heat sinks for external cooling
Author :
Angirasa, D. ; Peterson, G.P.
Author_Institution :
Dept. of Mech. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
29 May-1 Jun 1996
Abstract :
A numerical study is reported for high Reynolds number forced convection in a channel filled with rigid metallic fibrous materials of high porosity. These metallic fibrous media are envisaged as effective heat sinks for external liquid cooling of mainframe computers. The effects of inertia and thermal dispersion are modeled using the results from previous experimental and theoretical studies. The numerical results suggest that heat transfer rate increases with increasing Reynolds number and stagnant thermal conductivity, and decreases with Darcy number. The fiber thickness was found to have significant influence on thermal dispersion. The resulting numerical model will assist in the design of heat sinks and the choice of the material to be used in the proposed fibrous heat sinks
Keywords :
cooling; forced convection; heat sinks; packaging; porous materials; Darcy number; Reynolds number; electronic packaging; external liquid cooling; forced convection; heat transfer; inertia; mainframe computer; metallic fibrous heat sink; numerical model; porosity; stagnant thermal conductivity; thermal dispersion; thermal management; Cooling; Dispersion; Heat sinks; Heat transfer; Inorganic materials; Numerical models; Space heating; Temperature; Thermal conductivity; Thermal force;
Conference_Titel :
Thermal Phenomena in Electronic Systems, 1996. I-THERM V., Inter-Society Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3325-X
DOI :
10.1109/ITHERM.1996.534563
