Quote:
Originally Posted by aerohead
Commercial awnings on buildings around here are surviving 60-mph + thunderstorm gusts, fully exposed.
They're just tensioned Hypalon-coated fabric, laced to a very light, heli-arc- welded aluminum skeleton.
'Hiding' in the lee, behind an airdam, a taught fabric belly would be subjected to very little force.
NASA only gained a 5% drag reduction for a full belly pan on their semi-trailer, but hey, it's 5%.
If splash & spray is isolated, and cannot loft debris and water up on top of it, it seems like an okay 'solution.'
' Enclosed' within a perimeter of the airdam, 'rocker panels', and a diffuser, there'd just be dead air above it, and 'parallel' air licking the underside ( inverted bird bath on the belly ).
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No Thunderstorm lasts up to 11? hours a day, 6 days a week at 60mph.
If it's subject to "very little force", how crucial/productive is it in the first place, but I don't necessarily agree with the initial premise anyway that it is hiding in any significantly calmer "lee" air flow.
I'm not questioning it's a "solution", I'm questioning its bang for buck, its longevity, its safety impact to others in a failure, the complexity needed to make it suitable in the first place.
I'll give it a pass for now on potential alternative similar better solutions fabric less, ie just box off the entire space.