How did he video it at speed? I have seen pictures of this in old wind
tunnel data. At the old lazy L they used dots of dye or a liquid that gave
off smoke. Its a good visual for where the boundary layer trips and flow
direction.
Jim in cold dry Palmdale
----- Original Message -----
From: Keith Turk <kturk@ala.net>
To: <land-speed@autox.team.net>
Sent: Monday, January 22, 2001 7:42 AM
Subject: Becketts Aero Check
> Just found a picture when John was checking his Chevette's airflow.. it
was
> the Yarn deal
>
> He basically put 3" pieces of yarn all over the car at interval's and then
> tried to video tape it... at the end of a couple of Passes the Yarn
> unraveled to reveal where the air was the most turbulent... it was an
> interesting exercise and I think we all learned a bit from it...
>
> Since it's boring this morning I thought it might give us something to
hash
> over...
>
> Keith Turk
> Austin Healey 100, Bugeye, Box sprites, Bonneville Camaro ( Land Speed
> Racer)
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