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Re: 2026 Aerodynamic & Chassis Regulations
Posted: 15 Jun 2024, 15:06
by mzso
Tommy Cookers wrote: ↑15 Jun 2024, 13:00
mzso wrote: ↑15 Jun 2024, 12:35
.... hybridization is unquestionably better for fuel economy and such "the environment".
Also full electrification would be even better. Even if you just end up burning the same fossil fuels with large very efficient power-plants......
how are those things true ?
(given that we have now an ICE of 50% even 52% efficiency)
''large very efficient power-plants' are only so if combined cycle (ICE & steam) - which most aren't for good reasons
and carry substantial losses eg 8-10% in grid & network transmission plus 10-12% battery charge/discharge cycle
the attraction of the hybrid and EV is their batteries bolstering against intermittency of the public electricity supply
Well, not that I don't think the transmission and (dis)charge losses can be improved:
- Refining fossil fuel wastes a crapload of energy, which is conveniently forgotten when comparing efficiencies.
- You can use the "waste" heat, for heating purposes. With an ICE you can only use a small fraction for heating the car in the winter.
- You say ICE, if you don't mean it to be hybrid then it can't regenerate any energy when braking, unlike EVs.
- No pollution of the air that you breathe. Powerplants can be at some distance with the pollutants filtered.
But all in all, it's true, electric is even a lot better if you generate power by a less wretched way. Such as nuclear, hydro, or solar.
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 15 Jun 2024, 15:08
by jjn9128
Y'all go to the powertrain thread with your MGU sh!t, this is a safe space for chassis nerds
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 17 Jun 2024, 08:37
by FW17
Does a tunnel (running from the middle of the floor) and diffuser (starting 300 mm in front of rear wheel axel) of both 175mm high produce produce same downforce?
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 17 Jun 2024, 20:25
by jjn9128
FW17 wrote: ↑17 Jun 2024, 08:37
Does a tunnel (running from the middle of the floor) and diffuser (starting 300 mm in front of rear wheel axel) of both 175mm high produce produce same downforce?
Depends what the regs are - a lot of performance in the current regs comes from the massive VGs at the tunnel inlet. A flat floor can produce a lot of downforce though, that said, I'm not sure the FIA want a lot of downforce with these regs. We'll have to wait and see what the text is in a few weeks.
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 17 Jun 2024, 21:44
by AR3-GP
Reduction of downforce levels is a key element of good racing.
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 18 Jun 2024, 05:21
by FW17
jjn9128 wrote: ↑17 Jun 2024, 20:25
FW17 wrote: ↑17 Jun 2024, 08:37
Does a tunnel (running from the middle of the floor) and diffuser (starting 300 mm in front of rear wheel axel) of both 175mm high produce produce same downforce?
Depends what the regs are - a lot of performance in the current regs comes from the massive VGs at the tunnel inlet. A flat floor can produce a lot of downforce though, that said, I'm not sure the FIA want a lot of downforce with these regs. We'll have to wait and see what the text is in a few weeks.
Consider this as the front of the floor
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 18 Jun 2024, 13:31
by mzso
Vanja #66 wrote: ↑15 Jun 2024, 14:02
mzso wrote: ↑15 Jun 2024, 12:20
You lost me here. You say "these are" the main cause then you say they are significantly weaker and break up. I think something is missing. What is weaker than what?
And what are venturi tunnels contrary to then?
Do the 2026 reg do away with the fences? What was the point of them anyway, it if just causes vortices and entailing problems?
You say "diffuser vortex which is unavoidable without side skirts." But don't you mean the floor edge vortex? Seems more logical.
Isn't the diffuser vortex which happens as the air leaves the diffuser at the very rear?
It might be best to answer this part later today, when I'm back at my computer, it's hard to find all the images online and post them in a coherent matter from phone
Okay, so what did you mean?
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 18 Jun 2024, 15:47
by Luscion
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 18 Jun 2024, 19:29
by mzso
So no strakes either? I'm still not clear on that.
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 18 Jun 2024, 19:34
by JordanMugen
If the very short diffuser and no beam wing is accurate, it seems the FIA are very determined to reduce downforce!
But isn't underfloor downforce relatively not draggy?
If Stella's complaints of low corner speeds are to be addressed, while keeping low drag concept of the rules, surely the floor needs to be powered up?
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 18 Jun 2024, 20:09
by Just_a_fan
It will be interesting to see whether the 2026 floor stays that simple with no features rear of the required turning vane device at the front corner. Keeping such areas free from devices
might lead to closer racing.
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 18 Jun 2024, 21:11
by deadhead
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 18 Jun 2024, 22:35
by jjn9128
a work of fiction by italian media
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 19 Jun 2024, 07:46
by FW17
They should at least go full flat bottom without the 50mm step and keep only the 10 mm plank for ride height control.
Re: 2026 Aerodynamic & Chassis Regulations
Posted: 19 Jun 2024, 08:20
by Vanja #66
Off topic posts from the last couple of days have been reported, let's please separate PU from Aero and Chassis regs discussions and keep things on topic here, thanks
2026 PU thread is here -->
https://www.f1technical.net/forum/viewtopic.php?t=29581
