Quote:
Originally Posted by my427cobra
2) the movement of the boundary layer along the side of the car at speed would be sufficient to draw (venturi effect) air out of the vent and given the air is hot and less dense would simply blend easily with the boundary layer and would not look like some kind of jet blast coming out of the vents.
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There is no boundary layer along the side of the car, because of the width of the front tires and fender.....that’s why the yarn is turbulent where the vent is....
The vent on the side of the body is to inboard of the front wheels & fender causing the boundary layer to not be attached to the body at that point....which was why I put the vents up on the hood so the boundary layer could draw the air out of the engine compartment.....thru the vents on the hood.