On 09/05/2012 06:22 AM, Eugen Leitl wrote: > On Tue, Sep 04, 2012 at 02:54:46PM -0400, Ellis H. Wilson III wrote: > >> I know we've been taking things to the uber-scale level with this >> conversation, but does anyone have suggestions for small (homebrew >> Beowulf) clusters? I've considered oil before, but for all the > A major advantage of these forthcoming ARM server systems is that > they are air-coolable, and in fact even convection-aircoolable, > if you add a suitable funnel on top of the rack. Existing systems are already air-cooled by convection. Anything that is being cooled by the movement of air is convection* When we use fans in our servers, it's forced convection. Did you mean natural convection, where there the air density difference (caused by the temperature difference) causes the movement of air, without any fans?
Where does the funnel come in? To reduce drag that would hinder the natural convection? Sorry - I spent waaaay too much time studying transport phenomena in college. * For the science nerds: Technically, convection is heat transfer by flow of any fluid. -- Prentice _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
