Quote:
Originally Posted by Cd
I guess you have to know what to look for, because it just looks like semi turbulent smoke over a tiny model to me.
So they were actually able to attain the cD of the vehicle using such a tiny tunnel ?
( That is what I understood from the video )
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It'd that 'verisimilitude' ( dynamic similarity ), supercritical Reynolds number requirement in play.
At an average 15-mph @ full-scale, they can maintain a laminar boundary layer, up to the maximum body cross-section, which qualifies it as a 'laminar' body, of very low drag.
Scaled up for a family of five, I don't think they could expect numbers anywhere close to Cd 0.0512.
Like Aptera and the 1978 CNR car.