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Originally Posted by AeroMcAeroFace
But isn't that his point entirely? That low drag can be achieved without the/a template?
It is irrelevant whether it was for styling or drag, it achieves low drag, and doesn't follow the template.
"I have understood there can be attached flow with even steeper curves, but the the lowest drag is achieved if you follow the template." where is the evidence for this claim?
The template, I am pretty sure, without wheels, theoretically has a drag coefficient of 0.09.
Many solar cars with wheels, that are real, have drag coefficients around and lower than 0.09. But also none, of the many papers I have read about solar car design, say "we used an arbitrary template as the starting point".
I don't see what is relevant about being a mechanical engineer, mechanical engineering and aerodynamics are completely different things.
(I am not saying the template is useless, but it has many claims, and I have seen contrary evidence elsewhere in scientific research papers (not just in Julian's videos))
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No current professional car aerodynamicist uses the template for anything.
In fact one such aerodynamicist, who has worked for major car companies including leading car aero development (ie a real car aerodynamicist, not amateurs like us) told me how he very much enjoyed my video that debunks the template.
He didn't say: "Oh my gosh, don't you realise that the template is fundamental to all we do."
For those who think the template is so important, just read any current car aero textbook. "Optimal shapes" (all of them) are typically given only a few pages in the whole book - they're just not that important.