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angles
I sure wish we could get away from 'angles'.Angles don't occur in high-performance structures,only compound curvature.
One can only discuss a particular angle,tangent to the body curvature,at any particular point,not some general area of the structure.
The folks did a lot of work.And the values are appropriate for their model,nothing else.They've essentially re-discovered Paul Jaray's work of 1922.
One would be warned if they believed any fast and hard rules would apply to these results when extrapolated out onto the general pickup truck population.
Sure,compound structures are the most complicated forms,most difficult to create tooling for,most expensive.But if you want the best quality fluid flow over a structure,you're hard pressed to beat them.
And if you ever intend to have all available kinetic energy transformed back to static pressure,and achieve lowest drag,you're pretty much locked in to using these forms.
Anywhere,except the automotive industry,will you find anything but these complex forms being used to eek out every bit of available energy when moving structures though fluids,be they gases or liquids.
Okay,rant over.Thanks Brett.
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