Quote:
Originally Posted by JulianEdgar
I originally wrote:
So we're stuck in [Aerohead's] era where: - full wheel covers always gave the lowest drag
- lift was caused by separation
- airflow direction can be predicted by The Template
- rear spoilers 'reach up' to flow
- airflow separates at the end of the roof of notchbacks
.... and so on - all of which are wrong for any cars of the last 30 years.
Now what points has Aerohead answered?
Aerohead isn't keeping up with the literature. A good example of where he simply refuses to be guided by more recent references.
Typical personal abuse - and note, no answer to the point. Aerohead still apparently believes that lift is caused by separation. At least 30 years out of date with cars.
No doubt. But that doesn't therefore mean it can predict flow direction, as Aerohead often uses it to. Same old logical fallacy. Dogs have four legs, but not all four-legged animals are dogs.
What was Hucho talking about? Well, self evidently, cars that mostly had a lot of separated flow! That is not the case with any car of basically the last 30 years.
Meaningless stuff, I am afraid. Just go and talk to a professional car aerodynamicist about "mutilation to a streamlined contour". They'll just say: WTF? |
I'm quite pleased to learn that every automobile sold in the last 30-years had Cd 0.09. That would be the reality of separation-free automobiles.
Hummer H-1s weren't really Cd 0.70. And Ariel Atoms weren't really Cd 0.68.
And Dodge Viper ACRs weren't really Cd 0.56. And Silverados weren't Cd 0.412. Pontiac Solstice wasn't Cd 0.45. Chevy Malibu Maxx wasn't Cd 0.37. Certainly todays' Nissan Versa notchback can also defy the laws of physics.
I'm glad also that the Tesla Model X now has 178 mpg-e at 70-mph, with a range of over 525-miles, even without the new 54% power density increase mentioned on the 22nd. ( 808-miles ).
No more dirt accumulating behind vehicles. Porsche Taycan Turbo Ss at 195-mph. We've finally achieved Hucho's limit.
Like driving on the Moon.