[ODE] Stabilizing cars (finally!)

[Ignacio García Fernández]

Well, I have to say that I'll also be happy if someone sends such a  
link. Someday I should start looking at aerodynamic load, but now I  
have some tasks much more urgent. If someday I get to look at this,  
I'll send you whatever I find.

Regards

El 13/09/04 18:23:35, Jon Watte escribió:
> 
> I'm not sure aerodynamic force is proportional to air drag.
> What I do know is that the aerodynamic down-force from an
> inverted wing is caused because air moves faster over one
> side of the wing than another, and thus the effective air
> pressure is lower on one side than the other. The difference
> of air speeds should be proportional to the construction of
> the wing (some constant), and the speed of the wing through
> the (immobile) air -- i e, linear with velocity.
> 
> However, not being a mechanical or aerodynamics engineer at
> all, I'd appreciate it if someone has a good link to a
> relevant site which doesn't require a Bachelour's in
> mechanical engineering to decipher ;-)
> 
> Cheers,
> 
> 			/ h+
> 
> 
> -----Original Message-----
> From: ode-bounces at q12.org [mailto:ode-bounces at q12.org]On Behalf Of
> Ignacio García Fernández
> Sent: Monday, September 13, 2004 12:25 AM
> To: ODE at q12.org
> Subject: Re: [ODE] Stabilizing cars (finally!)
> 
> 
> El 13/09/04 01:43:24, Jon Watte escribió:
> >
> >
> > I actually have something similar, but I apply it in the "DOWN"
> > direction
> > of the car's body, and I always apply it (not just when in  
> contact),
> > and
> > it's proportional to velocity, and I call it "AIR_SUCK" -- it's the
> > general aerodynamical down-force that fast cars are designed to
> exert
> > on
> 
> Yes. Actually you are simulating aerodynamic load. However, notice
> that
> it is not actually linear with velocity, but somehow quadratic.
> 
> I say 'somehow' because the air friction is proportional to the  
> square
> 
> of the velocity, and the aerodynamic load wshould be related to this
> value, although I ignore in what way.
> 
> Hope it helps to finetune your models.
> 
> Regards
> 
> Ignacio
> 
> 
> 
> 
> 
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