Do F1 airboxes incorporate turbulence creating devices?

[Rough_rider]

Based on the theory that turbulent air in the intake plenum promotes a more thorough air/fuel mix.

Do F1 teams incorporate this theory?
How do they do it? Is it just as simple as leaving the airbox interior as naked carbon fiber, Or are vortex generators utilised.

Would love to see pic's.

[manchild]

F1 engines have air filters so I don't see how creating turbulence would be of any assistance since turbulent air would have to pass trough the air filter.

[knighty]

to my knowledge - no they do not - they squirt the fuel on the back of a closed valve and they rely on the port harmonics rushing backwards and forwards to mix the fuel in the port prior to opening the inlet valve.........I recently saw this on a technical lecture from John Hilton - who is the Renault F1 engine design manager.........the main purpose of the airbox is to convert flow into pressure as efficiently as possible........they do this by creating a diffuser effect, whereby the intake (above the drivers head) is small, and it opens up at a taper of about 7 degrees into the main airbox volume - like a tapered tube feeding a box........most F1 air boxes are now like this