Quote:
Originally Posted by KamperBob
AND the template applies only down centerline (vertical plane of symmetry lengthwise). Away from centerline sides play a role. It's a 3D problem. If the sides taper more quickly then the top, air flows over top and down the sides to fill. If top drops more quickly than the sides slope, air flows up the sides and over top to fill. Flow will establish its equilibrium. Equations will balance. Even without boundary layers, simpler pressure/flow CFD should help here. Tufts help and are more approachable technology.
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Yes,so far that's all we use it for.She's based on a complete body of revolution,but if done would be prohibitively wide,so that's a non-starter!
I'd started a plan-view drawing,then got distracted digging for other plan views to homogenize into some sort of generic form.
Morphing the sides into the roof is tricky 'cause the velocities and dynamic pressures are different.Not a problem in the original body of revolution.
So far,my gut feeling is that,after locating the position of max camber on the body side,mimic the roof curvature starting from the side zero point .
Progressing to the rear,begin to roll the sides into progressively steeper tumblehome ( as we see in the HONDA Fit B,C,and D-pillars),blending into the roof-line with slowly increasing radii.(extremely difficult to fabricate!).
I've been completely absorbed reducing the Trailer trip data since early October and have basically let everything else slide.
