Quote:
Originally Posted by TME45
DW get Diffuser but dosen't mean it is ground effect car
it just same size as normal LMP1
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Whhhaaaaat? The DW has tunnels and they work in conjunction with the air flowing under the car and through those tunnels, i.e., what is commonly known as ground effect. Any race car that has an underfloor (whether flat-bottmed, tunneled, spec, or whatever) that is designed to interact with the flow underneath the car in order to enhance downforce is considered a "Ground Effects" car.
And what's a "real" ground effects car anyway? What deltawing is talking about hasn't existed in 30 years (sliding skirts). Sliding skirts were banned years ago and the motorsports community moved on without them, successfully developing the ground effects concept further (US open wheel cars, IMSA GTP, Group C).
BTW DW has large vortex generator ahead of the leading edge of the tunnels (yes, those are tunnels in that the leading edge height is lower than the trailing edge height):
In concept these aren't very much different from what we ran in CART or IRL, except justify the whole setup rearwards.
BTW, "BLAT" is a ****-take on the term "ground effects" :
If you’ve (got a) racing car you want it to be pulled down on the ground to give the tires more traction. So, we came up with a term called the ‘BLAT’ effect. You see, we’re not using ‘ground effects,’ we’re using ‘BLAT.’” “Well wait a minute, what do you mean ‘BLAT?’” “Boundary Layer Adhesion Technology.” “It was supposed to be funny (at that the audience laughed loudly).” “Anyway, all these other old-fashioned guys were working with ‘ground effects’ and, of course, we had ‘BLAT.’”
Source:
http://www.automatters.net/2004%20Columns/0114.htm