Tuft testing vortex generators - Toyota Corolla aerodynamics

[perpersauce]

I tufted.



[microair01]

Well done. The evidence of VG function doesn't get much clearer than that(...unless you DON'T know what you're looking at).

[blacksupra001]

Dude look out theres gigantic sperms on your car :O

[puresofmeh]

bunch of sperm lols

[Indianmalujl]

If you want to increase your mpg, just follow this lol.

1. Have proper tire pressure

2. Drive slow !!

Aerodynamics only start to kick in hardcore and increase drag and decrease mpg at high speeds so keep the Velocity down and you are good :)

[nikan4now]

Could someone please explain how vortex generators reduce drag ? Do they prevent flow separation

[nighthawk754]

@nikan4now yes they create a vortex, reducing flow separation. also used on aircraft wings to delay stall. they are mostly used to delay stall on aircraft, but can also reduce drag.

[chamanullah]

@nikan4now

Yes vortex generators prevent boundary layer separation and result in an increase in lift by about 30 %. And since they prevent flow separation you can say that they result in reduced form drag. How much reduction I have no idea. :)

[ProbesandPylons]

@chamanullah increase in lift by 30 %????? Sounds dangerous

[julienjjj]

@chamanullah Vortex generator generate a typical 10% increase in lift on airplane, and a 50% decrease in drag, however, you have to go at a significan speed for them to work (over100kph). Increased lift is not always wanted in aviation because it slow you down and increase load on the structure. Airliners are moreoften fitted with winglets which generate less drag and turbulence with no real impact on the plane flying characteristic

[muzzlebreak]

Dude. You've got way too much time on your hands.

[Jesus45U]

While they don't change the MPG, it will often make the car a little more stable at high speeds, such as highway/motorway speeds. (or higher) Since you get rid of the seperation bubble and get a cleaner "cut" in the air.

We are talking about rather small differences, unless you have a rearspoiler though. They are useful for getting more downforce on a racecar though. :)

[HermieHedgehog]

The only thing wrong with this video is the reference to the delta-shaped VGs on the Lancer when you're using Airtabs. Otherwise, it's an excellent demonstration.

[Nick13AOR]

Excellent video!......Not only do they look great, they ACTUALLY work too!

Thanks for posting!

[waterwomyn]

Sept 2009 issue: Family Motor Coach Association tested Air Tabs and lower speed on a A class and managed to save significant fuel over time. Also improved the tendency to "fishtail" when trucks go by. Use them, and travel at the speed limit or below.

[josephdupont]

bravo on your work.

I was thinking of using batteries to run blowers to reduce drag and control boundery layer. use house charged batteries. "hybrid" using say radiator fans.

[mrbiggoggles314]

That sucks that they did not help the MPG because they look cool and the video made it seem like there was a big difference.

[riflemanjim]

i have airtabs on my pickup truck while they quited the air noise in the truck and seemes to be more resistant to cross winds they didnt do anything for fuel mileage

[EcoModderDOTcom]

Not really surprised. Head to the EcoModder aerodynamics subforum and you can see a test I did on a minivan with them. Zero effect on fuel consumption.

[HypersapienQ]

Amazing! And most think that they just look cool.. really like the effort here.

[h22sparkle]

most impressive