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Old 08-19-2020, 05:35 PM   #141 (permalink)
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Vas ist das?
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1) where the attached flow separates from the body is, by definition, the separation line. The back of a truck box, or trailer van in this case.
Doh!

More coffee.

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9) without streamlining, all we have is a wake of turbulence.
Dimples and wickerbills still Okay?

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Old 08-21-2020, 10:42 AM   #142 (permalink)
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Dimples and wickerbills

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Originally Posted by freebeard View Post
Doh!

More coffee.


Dimples and wickerbills still Okay?
Neither would have a place with respect to drag reduction of a road vehicle.
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Old 10-18-2020, 01:59 PM   #143 (permalink)
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Here's an example:

https://youtu.be/l47hKqnA-lc?t=229

A wickerbill on the diffuser affects the wake (allegedly).
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We are operating at an overall mechanical efficiency of only four percent… Therefore, we find that if we increase the overall mechanical efficiency to only twelve percent we can take care of everybody. That three-fold increase in the overall efficiency can only be accomplished by redesign. – R. Buckminster Fuller

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Old 10-21-2020, 12:30 PM   #144 (permalink)
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diffuser

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Originally Posted by freebeard View Post
Here's an example:

https://youtu.be/l47hKqnA-lc?t=229

A wickerbill on the diffuser affects the wake (allegedly).
He'd have to flesh out the theory in more depth for it to be of value.
I don't consider anything that has to do with dedicated race cars germane to road vehicle aerodynamics.
Everything he's done has only reduced the efficiency of the car.
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Old 10-21-2020, 02:43 PM   #145 (permalink)
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Unless you count efficiency as 'Porsches passed'.

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We are operating at an overall mechanical efficiency of only four percent… Therefore, we find that if we increase the overall mechanical efficiency to only twelve percent we can take care of everybody. That three-fold increase in the overall efficiency can only be accomplished by redesign. – R. Buckminster Fuller

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