It seem intuitive that (assuming you have a smooth surface underneath),
the air would rather go under than be pushed around the sides or over
the top (as this is bound to cause higher pressure at the front end
since there is less "spill perimeter"). Of course most vehicles are not
aerodynamic underneath. Nonetheless, some vehicles have apparently
taken the approach of purposely letting the air go under a smooth
undercarriage with some success.
And then there is the lift problem.
Benn
----- Original Message -----
From: <Dale.Clay@mdhelicopters.com>
To: <pork.pie@t-online.de>; <land-speed@Autox.Team.Net>
Sent: Thursday, January 27, 2005 12:04 PM
Subject: RE: Aerodynamics
> Yeah, some of that sounded kind of questionable to me too. Letting
air
> under the car REDUCES drag? If true, I'd be real surprised.
>
> Dale C.
>
>
> Subject: Aerodynamics
>
>
> Hi Folks,
>
> To this book which starts so much discussion.
>
> We talked about in Vaihingen at the University wind tunnel - the
result was,
> that we couldn't agree to a lot of points and views in this book - a
lot of
> theoretical advantages which in pratice never works or the opposite
creates.
>
> See ya
>
> Pork Pie
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