Quote:
Originally Posted by ksa8907
Air flow: what's interesting is you might expect the trails to be more horizontal. Perhaps there is enough low pressure attached to the ground behind the vehicle drawing the air at the side downward as well? Or is air getting sucked under the car from the side?
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My guess was the slight downward angles is just due to gravity. Since the road debris has more physical mass and still wants to fall down versus free floating air or smoke like you’d see in a wind tunnel