That was Exactly what we were talking about and how to re attach the air....
This particular fella is an old freind of ours.... and Brad was over for the
initial portition of the conversation.... Alan happens to be into
Corvettes.... First time I met him he had a small block in a Toyota
Pickup.... Very Cool installation.... the guy is just talented... The Army
picked him up to go to Pax River Naval test flight... to be an engineering
test Pilot.... what is Cool about Alan is with his interest in cars.... he
thinks Aerodynamic's in terms of the automobile....Tough combination to find
in the world of true aero Geeks
Keith
----- Original Message -----
From: "Dave Dahlgren" <ddahlgren@snet.net>
To: "Keith Turk" <kturk@ala.net>
Cc: <land-speed@autox.team.net>
Sent: Monday, February 12, 2001 3:48 AM
Subject: Re: Aerodynamic's and Dimple tape
> You might want to look at some of those sporty cars in the
> pro ranks they have spent tons and tons on money on aero.. I
> suspect it has a lot to do with the short little windscreen
> that is enough to lift the air over the cockpit and have it
> reconnect after the drivers head.
> Dave
>
> Keith Turk wrote:
> >
> > I had a buddy come by today and he just finished his masters in applied
Test
> > Flight in Tennessee.... Bottom line we ended up spending the entire
> > afternoon discussing aerodynamic's and the airflow characteristic's of
> > laminar Flow....
> >
> > We talked at length about the three layers associated with the surface
of an
> > airfoil.... smooth laminar flow... transitional flow and turbulant
flow....
> > these all exsist at the surface of our cars... the smooth laminar flow
> > happens at the nose.... and becomes transitional flow for a few inchs
prior
> > to becoming turbulant laminar flow just a few inches back from the nose
of
> > the car...... Worst case this airflow becomes Seperated and that is PURE
> > drag....Think of a Stalled airfoil being Seperated Flow....
> >
> > Bottom line it was an interesting discussion with a very bright well
> > educated guy.... he gave me this website to check out...
> >
> > www.dimpletape.com it's about Smoothing out the turbulant airflow as
the
> > air transitions back down the top of the car... or the maximum thickness
of
> > the airfoil....
> >
> > We also spent a ton of time talking about the manner in which you
transition
> > air from one point on the body to the next allowing for a hole in the
> > middle.... Very interesting.... think of the cockpit opening of the M/S
and
> > you might understand my interest....
> >
> > Any questions about the Dimple tape I can't answer I will forward to
Alan
> > and let him fiddle with the answers....
> >
> > Keith
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