Quote:
Originally Posted by 3-Wheeler
Yes, the air from the top of tire is going forward, while the radiator is going backward, and passing right over the top of the air from the tire, and that is why I mentioned the ductwork, to keep the to flows separated from each other.
Jim.
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Okay, I agree that the air on the top of the tire is going forward, but I'm not sure how much volume or velocity it has going forward.
We will have that small wheel well and the duct I spoke of earlier to hopefully mitigate any effect of the tire air going forward. If a tremendous amount of air went forward off that tire and under the hood, I agree it would fight with the engine cooling air coming rearward from the radiator and the engine cooling fan.
It reminds me of the old line by comedian Steven Wright where he put a humidifier and a dehumidifier in the same room to fight it out.
But think of a steering tire in the rain. The vast majority of the splash and spray is going rearward, not forward.
Please refer to the last image below.
I always thought this splash & spray was most attributable to the speed of the vehicle through the air, and the tires picking up water from the pavement. Not as much due to centrifugal force slinging the water droplets off of the tire itself. I understand the centrifugal force is a contributor to the splash and spray. Just not as much as the water splashing off of the pavement, combined with the slipstream traveling rearward.
Fortunately we have XZA2 Anti Splash Steering Tires from our major sponsor, Michelin Truck Tires. The XZA2's have a circular protrusion that extends outward about an inch on each sidewall, to vastly reduce splash & spray.
