Quote:
Originally Posted by Piotrsko
You would think more data is available from homebuilt aircraft: same style of engine cooling and exhaust system, but a cursory search indicates nothing very much new. Couple of radical installations that die after a while or rutans EZ has gone out of favor.
|
I'm not sure how aircraft got involved in this conversation?
They all already have the car equivalent of very long, very aero boat tails, so there's not much vacuum behind them?
The question I asked myself was:- How much can we reduce the vacuum behind a car
- and
- vacuum the exhaust out the exhaust pipe
by placing the exhaust exit in the optimal, highest vacuum area behind a car at speed..?
Related to that would be the effect of:- Placing a properly designed Bell Mouth shaped engine air intake at the highest pressure area at the front of a car at speed, to:
- Decrease the high pressure there slightly
- and
- blow air into the engine giving a free (= highest efficiency) turbocharging effect.
Maybe also related:(
The careful shaping and placing of the:
- cooling air intake
- Radiators and other hot bits like the exhaust manifold and engine
- The careful shaping and placing of the now heated cooling air exit
to take advantage of The Meridith Effect: (Thrust from heat)
https://en.wikipedia.org/wiki/Meredith_effect
I NB that The Meredith Effect requires the vehicle to be moving at much higher airspeeds than those of std autimobile travel, but the effect should still mitigate some of the cooling system drag of a vehicle.