Couldn't you solve some of the issues with scale models with a lighter gas mixture than air?Dr. Acula wrote: ↑27 Mar 2023, 09:43As far as i know, they compensate for this with lower airspeeds to a certain degree. To some degree, the effects happening on a smaller model at lower airspeeds are to scale compared to a larger model at higher airspeeds, if i remember it correctly.Rodak wrote: ↑27 Mar 2023, 04:12The issue with using a 60% scale model is that air does not react linearly with scale. A vortex at 100% will have different dynamics to a vortex off a 60% part, as the scale of the air is not changing (if you get my drift). It would seem to be complex to model airflow off a 100% model and reduce that to a 60% model with very good correlation; the model would have to reflect the difference in airstream behavior to the 60% model. This is sort of a macro-micro effect. The exact same problems would apply with water flow past a scaled object...... A further constraint is the air speed limit in the wind tunnel, 180 kph.
Honestly, all these conspiracy theory posts sound sort of .... off.
Where you really start to have issues though are things like boundary layers. because on the modell of course everything is tighter together and one other thing is of course asphalt. Simply not as smoth as the conveyor belt the cars run on in the windtunnel.
10cm is not a small change. It's not even a small change in a passenger car. lol.Rodak wrote: ↑31 Mar 2023, 06:41Not so sure. The center of pressure is aerodynamic, front/rear balance is mechanical. If the driver sits more forward of the c.g. they will not sense the rear coming around as well as a more rearward position. Having said that, 10 cm doesn't seem like a critical distance. If you look back years ago before the rule of driver's feet behind the front wheel center-line you can see extreme forward driving positions. Polar moments and driver position might be the issue. Still, a pretty small change; I suspect the driver.Chuckjr wrote: ↑30 Mar 2023, 22:08Bingo.continuum16 wrote: ↑30 Mar 2023, 19:49I suspect, sort of how the article alludes to, that a big reason for the lack of feel is the relationship between the cockpit and the center of pressure more than the position of the cockpit itself.
https://www.motorsportmagazine.com/arti ... rivals-mphLewis Hamilton has been giving a little more detail on the difficulties he is experiencing with this year’s Mercedes, the W14. There are two components to his complaints, one in the basic dynamics of the car and the other in the feedback it is giving him. It is this latter point he was referring to a couple of races ago when he said he’d told the team last year the changes that needed to be made and they hadn’t listened to him.
It’s compounded in the case of the Mercedes because of its dynamics – ie what it’s actually doing rather than just what it feels like. As Hamilton describes it, its centre of aero pressure (the aerodynamic equivalent of the weight distribution) is moving forwards a lot as it is braked, giving a sensation of rear instability.
But as he comes off the brakes and the car levels out, the centre of pressure is moving a long way rearwards – too far, making it difficult to get good rotation into the corner. So it has the worst of both worlds: rear instability under braking but a reluctance then to turn. So more steering lock is needed which, when the car finally grips up, pivots the car into oversteer mid-corner.
These traits make it extra important that the driver can accurately feel what the car is doing beneath him – yet that’s exactly what Hamilton isn’t getting because of the cockpit positioning. That’s the essence of his current problem with the car.
Red Bull has found a way of limiting the big swings in that centre of pressure, probably through its underfloor design and also with its extreme anti-dive front and anti-squat rear suspension geometry. And also, probably, by how effectively it seals the floor edges with the airflow being sucked through the undercut of the sidepods. The Mercedes is trying to create that effect with the downward-angled side impact bar and it would seem it’s a less robust mechanism, especially at low-medium speeds.
More importantly it's the two Mercs starting 2-3 on the grid.
Well with the car not at all to Ham's liking, he is beating him narrowly (and today it was aggravated by impeding of Ham by Hulk), lets see what happens when Ham gets the grip oft the car (and at the end of season if Merc is able to compete with RB). Lets see what happens to your excitement then
Is that the excuse now? This has been the usual tune that slower drivers sing when getting beating from their team mate, across the grid.xaero wrote: ↑01 Apr 2023, 08:27Well with the car not at all to Ham's liking, he is beating him narrowly (and today it was aggravated by impeding of Ham by Hulk), lets see what happens when Ham gets the grip oft the car (and at the end of season if Merc is able to compete with RB). Lets see what happens to your excitement then
What was the eventual qualifying record last year?mendis wrote: ↑01 Apr 2023, 08:28Is that the excuse now? This has been the usual tune that slower drivers sing when getting beating from their team mate, across the grid.xaero wrote: ↑01 Apr 2023, 08:27Well with the car not at all to Ham's liking, he is beating him narrowly (and today it was aggravated by impeding of Ham by Hulk), lets see what happens when Ham gets the grip oft the car (and at the end of season if Merc is able to compete with RB). Lets see what happens to your excitement then
For a newbee coming into the team, not bad! What was it in the race standings?xaero wrote: ↑01 Apr 2023, 08:31What was the eventual qualifying record last year?mendis wrote: ↑01 Apr 2023, 08:28Is that the excuse now? This has been the usual tune that slower drivers sing when getting beating from their team mate, across the grid.xaero wrote: ↑01 Apr 2023, 08:27
Well with the car not at all to Ham's liking, he is beating him narrowly (and today it was aggravated by impeding of Ham by Hulk), lets see what happens when Ham gets the grip oft the car (and at the end of season if Merc is able to compete with RB). Lets see what happens to your excitement then
Again selective memory and quote. I just tired to remind you since you are so exited about 3-0 and now shifting the goal post.
No, you just mentions what suits you (nothing to do with past or, present).. I don't have any issue with this though but when it becomes repetitive and selective targeting then only it becomes annoying.
They definitely seem to have done that here,pursue_one's wrote: ↑31 Mar 2023, 09:23According to Toto Wolff, Miracle not coming(major upgrade packages) anytime soon for Mercedes.
"The next three races, we won't be adding any performance."
"It's finding the best set-up solutions and getting the tyre in the right window."
but shouldn't the goal be to design a suspension that does that every time. Getting the tyre in the right temperature range brings more performance than anything else on a Grand Prix car!
