Quote:
Originally Posted by wmjinman
At the Black Rock Desert, a big truck kicks up a dust trail many times larger than a car. - of course, I guess it probably has a bigger turbulent aero wake behind it, too - - - -  |
This size of the vehicle as i understand it is closely related to its total drag, in as much as CdA is a calculation of Cd and frontal area. I took these photos partly because aerohead once suggested in a thread hee on EM that a lot can be seen in the dust trails formed behind vehicles at El Mirage. You can't read it for numbers, like the Cd or lift or whatever. But you can plainly see the scale of the wake left y that sleek, small, streamliner motorcycle versus that yellow Austin. It's a flow dramatization, not a measurement. But the dramatization is useful too.