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| BrianCunningham | [videos] Vented hood testing | ||
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Senior Guru
 
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Another thread from "over there" I thought you might want to see.
The good old "tuffs of yard" test. Hat's off to you him doing this, sometimes people take too much time theorizing, instead of just getting out there and testing it! [QUOTE]RC45, Here are some videos. The audio sucks, but I left to help indicate speed. I guess the big question is whether the behaviour observed is good, bad, indifferent or as desired. WindTunnel Hood 1 A video showing behaviour of airflow over the ACP Extractor hood. The run is up and down a local side road - one way with vents on top of the fender closed, and on the way back open. The radiato shroud/box is closed.  http://www.youtube.com/watch?v=D7lnKtqe9nA WindTunnel Hood 2 A video showing behaviour of airflow over the ACP Extractor hood. The run is up and down a local side road - both ways with vents on top of the fender are open. The radiator shroud/box is open.  http://www.youtube.com/watch?v=ct3FWPp_CoI WindTunnel Hood 3 A video showing behaviour of airflow over the ACP Extractor hood. The run is down a local side road - this time from a different view. The radiator shroud/box is open.  http://www.youtube.com/watch?v=nVdcdX4MANA WindTunnel Wheel A video showing behaviour of airflow around the Gurney Flap (?) placed on the leading edge of the front wheel well. The run is up a local side road.  http://www.youtube.com/watch?v=O-byeKS9i7E WindTunnel Fender Gill A video showing behaviour of airflow around the drivers fender gill/vent. The run is up and down a local side road - one way with wheel well vent closed, and on the way back open.  http://www.youtube.com/watch?v=chLVYW6GPJY [/QUOTE] |
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Posted on: 2008/8/29 22:41
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| Aardwolf | Re: [videos] Vented hood testing | ||
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Senior Guru
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I looked at that too, as I did a similar test last year. I wish I could help him out more but I'm not schooled in aero. Hopefully someone experienced chimes in.
While we're on the subject I have an aero related question. Why is the later C4 radiator tipped backwards? Since I'm removing the A/C I thought of tipping the radiator forwards then venting the hood. To help with aero/drag/cooling. |
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Posted on: 2008/8/29 23:07
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| bogus | Re: [videos] Vented hood testing | ||
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Grand Imperial Pooh-Bah
 
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I don't know why, but I can hazard a guess:
it was tipped back to lower the top of the radiator. It was prone to air pockets before that. It could also inprove air flow underhood. |
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Posted on: 2008/8/30 1:17
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| captmike13 | Re: [videos] Vented hood testing | ||
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Elite Guru
 
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I believe that they are tipped back is to improve the surface area exposed to the air flow through the radiator.
My theory anyways. Mike |
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Posted on: 2008/8/30 3:00
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Mike| CentralCoaster | Re: [videos] Vented hood testing | ||
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Senior Guru
 
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Good effort, but I don't see anything resembling conclusive results.
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Posted on: 2008/8/30 6:12
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