Cooling air flow: Backward rather than downward.

[freebeard]

Thanks for posting the PDF. It has the most info I've seen on the kompakt car (wedge
Car) on page fifteen.

[aerohead]

Originally Posted by Logic

Thx
https://iris.polito.it/retrieve/hand..._postprint.pdf

https://www.retro-speed.co.uk/showfeature.asp?art=27302

But no mention of engine compartment ventilation or radiator ducts etc.

I assume there may have been some Meredith Effect?
https://en.wikipedia.org/wiki/Meredith_effect

On page-11, of the first SAE Paper you cited are photographs of the car, showing the extractors vents that cost $100,000 is 1978 Dollars.

[Logic]

Originally Posted by aerohead

On page-11, of the first SAE Paper you cited are photographs of the car, showing the extractors vents that cost $100,000 is 1978 Dollars.

Thx. I shoulda looked more closely.

Figures 32 and 33 etc are interesting:
Use a 'propeller-ed' mag or rim that vacuums outside air in for cooling, then vent it behind, reducing the vacuum behind the car.

[aerohead]

Originally Posted by Logic

Thx. I shoulda looked more closely.

Figures 32 and 33 etc are interesting:
Use a 'propeller-ed' mag or rim that vacuums outside air in for cooling, then vent it behind, reducing the vacuum behind the car.

The wheels mounted in close-proximity to aerodynamic stator vanes, incorporated into the inner face of the wheelhouse cavities.
I'm not certain if Pininfarina's wind tunnel had the facility to measure ventilation drag of these 'pumping' wheels.
Perhaps freebeard remembers.

[freebeard]

Perhaps freebeard remembers.

Pretty sure I never knew.

It does occur to me that if one wanted to measure to airflow in that duct, a hot wire mass airflow sensor from a fuel injection system might work.