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Old 04-22-2009, 05:59 PM   #1
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Default drag testing

we have these programs in schools to build bridges and find out if there stable and i was wondering if there was a program i could get to test drag and resistance of a design with wind
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Old 04-22-2009, 06:04 PM   #2
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Default Re: drag testing

go build a wind tunnel.
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Old 04-22-2009, 06:27 PM   #3
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Default Re: drag testing

You need something like a computational fluid dynamics program.

Maybe something like this: ANSYS CFX
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Old 04-22-2009, 06:44 PM   #4
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Default Re: drag testing

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Originally Posted by esa193 View Post
we have these programs in schools to build bridges and find out if there stable and i was wondering if there was a program i could get to test drag and resistance of a design with wind
Curious.. How did you go from building bridges to air resistance?
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Old 04-22-2009, 06:46 PM   #5
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Default Re: drag testing

They go hand in hand vampist. If you build a bridge with bad airflow and design characteristics, the bridge could buckle and roll in high wind conditions.


The most famous example:
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Old 04-22-2009, 06:58 PM   #6
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Default Re: drag testing

yep. not a concern with a highway overpass, but anything bigger than that needs to go through a wind tunnel now.
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Old 04-22-2009, 08:06 PM   #7
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Default Re: drag testing

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Originally Posted by Atomic Rooster View Post
They go hand in hand vampist. If you build a bridge with bad airflow and design characteristics, the bridge could buckle and roll in high wind conditions.


The most famous example:
Holy Hub caps batman! Did not know wind could do that to a bridge..

You always see that with earthquakes never seen it with wind Whoa!

Who knew roads where so flexible xD
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Old 04-22-2009, 08:28 PM   #8
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Default Re: drag testing

i built a bridge once. didn't fare well. Probably not enough aerodynamics.
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