Quote:
Originally Posted by aerohead
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Quote:
Originally Posted by aerohead
Here are some of the wind tunnel model configurations Lay tested.
Once the windshield header/A-pillar radius is 'enough' to get attached flow,no amount of further rounding will produce a drag reduction.It has reached 'saturation.' As to the angle,of course,the steeper the better up to the point where internal reflections interfere with outward vision.
Your windshield should be okay as it is.
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I built blisters for the hoods of the Dodge and Toyota trucks.I don't know if they do anything to lower drag,but I don't think they increase drag.Since I couldn't lay the glass back at a steeper angle,the blisters helped to relax the angle of the flow coming at them.Here is the Toyota
It flowed very well in the wind tunnel although I intend to widen it out to the edge of the fenders in hopes of slowing the flow a bit which will impact the side-view mirrors. |
If no one has ever told you, you are indispensable to Ecomodder and a treasure trove of pure, truthful information Aerohead! Simply incredible
The nose did not help front aerodynamics,
but did it change the final Cd by diverting air towards a less dirty part of the vehicle? If I am beating a dead horse with this nose business, then by all means tell me to stop! I have a problem with getting caught up on non-critical aspects at times
It is hard to believe those 2 cars have to same drag coefficient! The top photo's uncovered tires likely played a big roll in that.
On your word, I'll leave the windshield alone. So the name of what I want to do with the hood is a blister... I would like to design on of those if possible. It can't hurt, like you said.