Re: [T3] areodynamics

["John Jaranson" <jaransonT3@comcast.net>]

>From: "Erik Litchy" <litchy@insightbb.com>

>I want to understand the areodynamics of my fastback.  why are the louvers
>where they are?  wouldnt the passing air draw air OUT?  it would almost make
>more sense for a small scoop to be there.  or am i off base?
>

Erik -

I have a page on my website devoted to the aerodynamics of the Type 3. 
Check it out at:

http://mywebpages.comcast.net/jaransonT3/jaransonT3/AeroPage.html


Yes, the louvers would probably draw air out of the fender if it weren't for
the large, high volume cooling fan sucking air into the fenders.  I suspect
that this suction actually helps to lower the drag of the Type 3 by reducing
the degree of turbulence behind the car by keeping the airflow attached to
the surface of the car further reward.  I doubt this is a significant effect
due to the relative size of the louvers to the surface area of the
car....but every little bit helps.


Later,
John Jaranson
'71 FI AT Fasty (Jane - Darkside Project)
'66 Square (Sophy - Daily Driver)
About Half a Late Square (Organ Donor)
http://mywebpages.comcast.net/jaransonT3/jaransonT3/
http://mywebpages.comcast.net/jaransonT3/notavwclub/
http://mywebpages.comcast.net/jaransonT3/2004Invasion/

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