Forced convection cooling enhancement by use of porous materials

Sintered porous heat sink for cooling of high-powered microprocessors for server applications

“…In addition to this, the wall effect reduces the heat transfer coefficient near the front of the heated section and slightly increases it near the end of the heated section. Ould-Amer et al [17] showed numerically that insertion of porous material between the heat generating blocks, [18] investigated turbulent fluid flow and heat transfer characteristics for a rectangular channel with porous baffles arranged on the top and bottom channel walls in periodically staggered way with air as working medium and using control volume-based finite difference method. Results showed that the porous-type baffles has lower friction factor than solid-type baffles and enhanced heat transfer relative to the smooth channel.…”

Experimental investigation on thermo‐driving heat transfer in porous medium in a centrifugal force field

“…At the same time, flowing of the fluid in the porous medium where it exists has a dispersion effect. Like eddy in torrent, it can make molecular groups mix radially, make radial temperature distribution uniform, and eventually evidently enhance heat exchange [2][3][4]. Along with enhancing heat exchange, resistance to flow is also augmented.…”

Enhancement of forced-convection cooling of multiple heated blocks in a channel using porous covers

“…A significant increase in heat transfer rate was observed as the Darcy number was decrease, especially at the leading edge of each heat source. Ould-Amer et al [10] analyzed the effect of porous insert between the heated blocks. They showed that porous insert enhance the heat transfer rate on the vertical sides of the blocks.…”