Tom;
The idea behind an underside venturi is to do something similar-- create a
low pressure area under the rear of the car; this creates a net downforce.
Unfortunately the rule book says you can't use a venturi in most classes but
I guess the vent is allowed.
Yes, if a vent is used, airflow is diverted to the low pressure area behind
the rear window and then any venturi action would be lost. Although the
airflow is diverted, the results are similar-- higher aerodynamic stability.
Regards, Neil Tucson, AZ
-----Original Message-----
From: Thomas E. Bryant [mailto:saltracer@awwwsome.com]
Sent: Monday, January 19, 2004 9:56 AM
To: Albaugh, Neil
Cc: 'James Tone'; Bob Denton; land-speed@autox.team.net
Subject: Re: Down Force Spoiler - - Aeronautics Question
Neil,
By my comments, I suspect that you know that I am a novice when speaking
of aerodynamics, but, it is my understanding that the vent function is
to break the lift created by the low pressure over the deck of the car.
Wouldn't it also negate any ground effects toward the rear of the car
that might be created by under car airflow?
Tom ,Redding CA - #216 D/CC
Albaugh, Neil wrote:
> JT;
>
> This rear "vent" sounds like a basic form of the underside venturi that
most
> race cars now use to generate downforce.
>
> Regards, Neil Tucson, AZ
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