Quote:
Originally Posted by freebeard
maybe the trumpet needs a mute.
The Bocham University car is the inspiration, but it gives up a lot of interior volume. Maybe a flat truncation or box cavity with a downsized MBT that's only a fraction of the size? I was thinking it would create a channel or tributary that would gather the under-car air and suck it out the back.
Here's what I was thinking in 1995, fan powered:
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*The Bochum car is just a 2-seater,and the diffuser doesn't affect the passenger compartment.I've been in the car and it's a flat floor up front.
*Any ductwork will have more surface area and friction than the area of the car it's shunting air from.
*And this area which is losing airflow is now subject to separation since we've taken all the isoenergetic stream filaments away from it and moved them into the duct.
*The duct inlet is probably at a lower pressure than it's outlet,so we would have to put a blower inline,or the flow would be backwards.
*And the blower would require horsepower equal to the CFM,at the delta-P within the duct,plus wall friction losses.
*The duct has also created additional drag which will have to be overcome.
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*The only 'solution' which has been verified so far is just a simple,proper,diffuser,of low divergence,incorporated with boat-tailed wheel fairings,as in the Prius.
*Anything else will require more power than it saves.
*Only a over-unity power supply will help us.
