my coanda thrusters mod :)

[Joenavy85]

i don't think it will give any thrust at all, i believe it will just reduce drag based on the favorable vectors as mentioned above. much like rounding the rear part of the front fender as mentioned in the 65+ modifications list.

[Christ]

Originally Posted by Joenavy85

i don't think it will give any thrust at all, i believe it will just reduce drag based on the favorable vectors as mentioned above. much like rounding the rear part of the front fender as mentioned in the 65+ modifications list.

I a mannerof speaking, the only way to remove from one is to give to the other, and vice versa... In other words, if you are reducing drag in one vector, you're increasing thrust in the opposite vector. It's still net negative. Semantics.

[Christ]

Its like saying that his heater doesn't heat, rather it makes his local environment less cold. You see?

[Joenavy85]

Originally Posted by Christ

I a mannerof speaking, the only way to remove from one is to give to the other, and vice versa... In other words, if you are reducing drag in one vector, you're increasing thrust in the opposite vector. It's still net negative. Semantics.

yeah, the same way deceleration is actually acceleration in the opposite direction. it isn't really the same thing but has the same effect

[Otto]

How about using Coanda effect as part of the undertray, to exit at the rear of the car and generate downforce while hopefully reducing wake drag?

Or, combine or utilize Coanda effect to extract cooling air from the engine bay, to vent along the sides of the car?

I'm just wondering here, without much forethought.

[euromodder]

Originally Posted by Joenavy85

i understand that fluid dynamics is very broad, but the spoon demonstration is hydrodynamics not aerodynamics, the flow of water is completely separate from surrounding air, that is more of a demonstration of surface tension.

I've tried it with pressurized air at work - it still works when you use air instead of water.

[Joenavy85]

Originally Posted by euromodder

I've tried it with pressurized air at work - it still works when you use air instead of water.

higher speed = lower pressure. the air is basically trying to take the spoon with it (entrain it)

[SoobieOut]

Great discussion, I did a wikipedia search Coanda, Did not know about his flying machine. 1910, the world's first jet aircraft.

http://www.youtube.com/watch?v=MDaUbsWNXvI

Seems like this might work if you can limit the drag from wheel well airflow beside the car.

[aerohead]

Originally Posted by gabi

the upper camber of the body accelerates the flow,hence dropping the pressure there in compliance with Bernouli's Theorem.The atmospheric pressure under the structure pushes the structure upwards in an attempt to reach equilibrium pressure but cannot penetrate the impermiable membrane so it remains there until power is pulled,pressure equalizes and lift goes to zero.
There is no accounting for the external horsepower necessary to created this effect.

[aerohead]

Originally Posted by MorphDaCivic

Great discussion, I did a wikipedia search Coanda, Did not know about his flying machine. 1910, the world's first jet aircraft.

Seems like this might work if you can limit the drag from wheel well airflow beside the car.

Neither of Coanda's aircraft ever made it off the ground.