Red Bull RB9 Renault

[Jackles-UK]

Could that duct be used to channel almost entirely unobstructed air from below the roll hoop through the hot air exit and onto the monkey seat/beam wing? Might give a bit more high-speed downforce whilst also cooling something by proxy (likely the gearbox) with the rushing air?

[wesley123]

It wouldnt give more downforce.

[Huntresa]

Wouldnt that give less downforce and also destroy the whole porupose of the monkey seat, in its helping attach the flow on the RW

[Owen.C93]

Could that duct be used to channel almost entirely unobstructed air from below the roll hoop through the hot air exit and onto the monkey seat/beam wing? Might give a bit more high-speed downforce whilst also cooling something by proxy (likely the gearbox) with the rushing air?

Ducting air through twisty bodywork doesn't keep it "unobstructed".

[stefan_]

Spain 2013 - Friday (10.05.2013)

[marcush.]

i still have issues with these flow sensor grids...aren´t those relying all them on non turbulent flow fields and are very sensitive to orientation as well as temperature ? This all looks very tricky stuff to me considering the environment you are in plus the change of conditions you produce by introducing the grid and its ancilliaries -just look at that huge box mounted to the endplate ..

[Owen.C93]

i still have issues with these flow sensor grids...aren´t those relying all them on non turbulent flow fields and are very sensitive to orientation as well as temperature ? This all looks very tricky stuff to me considering the environment you are in plus the change of conditions you produce by introducing the grid and its ancilliaries -just look at that huge box mounted to the endplate ..

Most of the time it's downwind and not a problem. Generally you're looking for correlation rather than actually learning about the flow, so it's not a difficult job to add the box into CFD and use those numbers.

[marcush.]

But you correlate a modified experiment ,don´t you? so where does that proof your concept without the array does correlate as well? I´d think if it all were that easy ,Aero would be a perfect predictable science right now -which it isn´t at least not when you are after the minute changes ..point is your array may have bigger influence on what ´s happening in that area than your modifications to the car as you want to race it.So filtering out these effects ....good luck ,I don´t buy it.It´s useless crap to me ,as is the flowwiz voodoo (where is the sense of applying a liquid to a surface and then go around a circuit at x speeds ,x-acceölerations and completly unpredictable influences ? I never saw any team actually video capturing their flowviz runs on track which would make it all a lot more worthwhile doing ....half baked ideas monkey see monkey do..

[stefan_]

Spain 2013 - Saturday (11.05.2013)

[Matt Somers]

Tyre Squirt Slot added to the RB9 (Not sure if it's on both cars yet)

[stefan_]

Spain 2013 - Saturday (11.05.2013)

Flow viz during FP3

[CHT]

didnt know the stuffs in there is so complex. Is that just for the DRS wing flap?

https://imageshack.us/scaled/large/202/redbo.jpg

[shelly]

No, its the scanner for the pressure probes of the rake they run in practice (see pictures and posts above)

[Just_a_fan]

No, that is connected to the aero testing rig behind the car. You can see one of the pitot tubes in the back of the picture.

Edit: I'm agreeing with shelly

[henra]

But you correlate a modified experiment ,don´t you?

and

good luck ,I don´t buy it.It´s useless crap to me ,as is the flowwiz voodoo (where is the sense of applying a liquid to a surface and then go around a circuit at x speeds ,x-acceölerations and completly unpredictable influences ? I never saw any team actually video capturing their flowviz runs on track which would make it all a lot more worthwhile doing

That's exactly what I was wondering also (referring to both - the pitot arrays and the flow viz).

That massive grid will have significant effects upstream and will yet only measure individual (read fluctuating) data in a turbulent flow. So two effects that make me both wonder what you can really read from the results.

And for the flow- viz: For what speed do you want to determine the actual flow? I'm pretty sure that the local speed and direction in an area passed by a rotating vortex will change so much that at the end of one lap you only have a big mixture of traces. It might work if you want to identify if flow separation occurs under any circumstance at a given location but beyond that? I don't see how you could correlate certain elements of a flowviz trace with a certain speed or behaviour of the car in a certain condition !?