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Registered
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
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There's much more as to why "pushing" air will be easier than "pulling" air....
Not just for all the reasons mentioned, but any fluid ( as "air" is) has a certain compressability which it can tolerate as it's forced to move...but lacks "strength" ( if you will) and "pulls apart" when you try to "suck" air from above....
This isn't really what happens...but it serves to create a mental picture of what then goes on. For those of you who might be designers of industrial cooling towers or finned, air cooled heat exchangers ( ACHX's), this is similar to "induced-draft" fan configuration over the tower or ACHX.... as opposed to "forced-draft". Notice the big difference in air flow HP required to get induced flow to work...
Porsche, I believe also tested and rejected this configuration...but I don't recall all the specifics of the reason for rejection...
Wil
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Wil Ferch
85 Carrera ( gone, but not forgotten )
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