Chevy Volt Wind Tunnel Video

[NeilBlanchard]

Hiya,

The dimples in the golf ball lower the coefficient of drag, which is multiplied by the area to get CdA; or total drag.

[Geebee]

Originally Posted by tasdrouille

Please look up the formula for aerodynamic drag. All else being equal, 2% increase in frontal area will increase aero drag by 2%, there's no way going around that unless you believe the Cd of the car to be lower with mirrors than without.

The "all else being equal" completely changes the statement, as the Cd of the mirrors could be and most likely is, sustantialy different from the body.

A rectangular block with the same frontal area as the Volt will not have the same drag even thought the frontal area is identical.

[tjts1]

Excellent video. Heres some more useful info.
http://paultan.org/archives/2008/09/...hevrolet-volt/

Originally Posted by tasdrouille

So they got the Cd down 30% from the original concept. Do you know what the original concept Cd is? 0.43 is the number reported. The production version is said to have a Cd of 0.28-0.3. Hardly impressive.

Have you designed a car lately?

[Cd]

Has anyone else noticed that the steering wheel on the newest Volt looks almost exactly like the one on the new Civic ?

( Regarding the exterior : I think the Volt now looks like the Honda Civic and Chevy Malibu had a baby together. )

[Kaneda]

good... so i wasnt the only one to see the civic clone... i like it.. i hope they bring it out... but doesnt it have around the same cd as the crx? 20yrs ago...

[PA32R]

Originally Posted by tasdrouille

I would have thought that behind that mirror, there will be a nice wake roughly the size of the mirror itself. Just like the wake behind a hatchback. If not I would like to get an explanation why.



What is the basis of that affirmation? I don't see how you were able to determine that (that they operate in their own airflow).

At an estimated Reynolds number of 270,000 or so, you'd certainly think so.

[FX Flyboy]

Here is a video responce to the launching of Chevvy Volt by a guy who's been developing a working HHO application (and documenting it well too).

I'm not saying I agree or not, just thought his view might add another line of thought to the current mix.

It seems that I'm too daft to embed this video, so just follow this

link

[FX Flyboy]

Oh, it worked... how odd