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RE: 90 90q 20v redline top speed
From: "Bertenyi, Tamas" <Tamas.Bertenyi@nrc.ca>
>Hmmm. I just consulted my text "Aerodynamics of Road Vehicles" by
>Wolf-Heinrich Hucho. He quotes a Cd for the Audi 90Q of around 0.39.
>These are results measured in the Volkswagen climatic wind tunnel and
>the same values can be found in Werner and Heil.
Could you give a few more? e.g. mid 80s Audi 80, 100 and Avant, A4, A6.
(also the frontal area if you have access to these figures).
>Thus your drag in Newtons at any speed, V, is
>D=0.5*rho*V^2*(0.39)*(1.90) but I guess I am getting carried away
What is rho? Where does the 0.5 come from? Is it just a function of V^2,
otr is there a component of V^3?
>don't get me started,
Why not? It is a great opportunity to get info "from the horse's mouth".
I've forgotton almost all the aerodynamics I did at school/college.
1984 Audi 80 quattro
1989 Audi 100 Avant