Aerodynamics / Aerodynamic Cost / Aero parts

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Lolo in reply to @Jonny69

aero testing (...) urban layouts.

I didn't even know that was a thing.

Thanks for sharing btw!

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gbj_tester in reply to @Lolo
I didn't even know that was a thing

It didn't used to be. Your structural engineer would include a fairly crude wind load factor in his calculations to make sure your house didn't blow down (hint: use bricks rather than sticks or straw) but nobody cared that the flow field around the base of a tower block was a mortal hazard to cyclists in anything more than a light breeze (see Euston Tower)

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hippy in reply to @gbj_tester

See also the story of 601 Lexington

http://www.slate.com/blogs/the_eye/2014/04/17/the_citicorp_tower_design_flaw_that_could_have_wiped_out_the_skyscraper.html

https://en.wikipedia.org/wiki/Citigroup_Center

It was featured on one of those engineering tv shows. Basically at the time they calculated wind loads side on and years later a student redid the calcs if the wind hit the corners. Because of the weird design to hover the bulk of the building over a church, the corner loading in a storm could've collapse the building.
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Lolo in reply to @gbj_tester

flow field

Nasa is working on that apparently, you know, for drones and jetpacks.

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