Valkyrie aerodynamics

[Fluido]

1.How venturi tunnels at Vakyrie works if they are so much high from ground, I mean you can sleep under the car?
To get max low pressure throat section must be close to ground.
Can you post side view of tunnel?

2.Part of "diffuser" that is behind rear wheels have huge lateral expansion, how flow stay here attached?
I think adverse pressure gradient is too strong here, flow must deattached.

3. Did they change tunnels design, I see on some pics. differnt desing, T shape at bottom?

4. Can this car have Cd=0.30? Inst that too small for such huge downforce car?

[Greg Locock]

Cd=0.30 seems very unlikely indeed if it is producing 2g (?) of downforce.

[Fluido]

Yes it sound too low.

[BlueCheetah66]

The Venturi tunnels will likely have some sort of vortex structures within it, either from the front wing. The biggest indicator of that is that the tunnels are very rounded in shape, to keep the vortices strong throughout. This will also help the flow stay attached though the lateral expansion

[Fluido]

The Venturi tunnels will likely have some sort of vortex structures within it, either from the front wing. The biggest indicator of that is that the tunnels are very rounded in shape, to keep the vortices strong throughout. This will also help the flow stay attached though the lateral expansion

So Adrian on purpose send vortex in the tunnels, he dont wont laminar flow in tunnel?
Why vortex flow follow curved surface without separation?

where is peak suction, any CFD of that car?

[n_anirudh]

Flow will be turbulent at high speeds Not laminar anyways.
VOrtices are used for floor sealing
The floor would have been optimised for a range of operating conditions with sensitivities to yaw/ride height etc., and any CFD would be user based - not company provided.

[n_anirudh]

Cd=0.30 seems very unlikely indeed if it is producing 2g (?) of downforce.

Only frontal drag, not inclusive of the induced drag at high speeds

[Hoffman900]

The Venturi tunnels will likely have some sort of vortex structures within it, either from the front wing. The biggest indicator of that is that the tunnels are very rounded in shape, to keep the vortices strong throughout. This will also help the flow stay attached though the lateral expansion

So Adrian on purpose send vortex in the tunnels, he dont wont laminar flow in tunnel?
Why vortex flow follow curved surface without separation?

where is peak suction, any CFD of that car?

All floors respond favorably to vortex generation. The strakes as you see them on F1 cars have been in use on tunnel cars (Indy / Cart) going back to the mid 1990s.

See here:
https://www.researchgate.net/figure/Sch ... _228616843