MMM...Aerodynamics...
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From: Gie
Coolest thread ever!
I have ZERO clue about how you are modeling this, but I do have a small, somewhat accurate model that you can use for reference.
PaperModel
It took me 2 iterations to get it down, but the end result is a surprisingly accurate paper model of our cars (minus the side mirrors). Total time to make the model was an hour, tops.
I have ZERO clue about how you are modeling this, but I do have a small, somewhat accurate model that you can use for reference.
PaperModel
It took me 2 iterations to get it down, but the end result is a surprisingly accurate paper model of our cars (minus the side mirrors). Total time to make the model was an hour, tops.
I am using Unigraphics NX3 for the CAD and CFdesign 8.0 for the Computational Fluid Dynamics.
I work for Blue Ridge Numerics, the company that makes CFdesign. I've got a little downtime today and I am just honing my skills.
I see those red areas just in front of each tire. I wonder if Honda has already done this and that's why they put those under strakes in from the factory.
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From: Gie
For the top open case:
Velocity = 120 mph
Drag = 412.62 lbf
Downforce = 21.58 lbf
Surprised that it generated downforce. I imagine this will go away and become lift at even higher speeds.
Velocity = 120 mph
Drag = 412.62 lbf
Downforce = 21.58 lbf
Surprised that it generated downforce. I imagine this will go away and become lift at even higher speeds.
Joined: Mar 2003
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From: Home
Originally Posted by slimjim8201,Oct 6 2005, 12:57 PM
Look under the front of a Corvette and you will see an ugly flap of plastic that extends all the way across the underside of the car from side to side. It looks like it would induce drag, and it does, but more importantly it diverts air from going under the car, reducing lift at high speeds.
Joined: Jun 2001
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From: Hopedale, MA
This is very cool! 
You should get a Diecast model and use that. If you get one of the good ones they have a lot of the same features as a real S.
Again great job! Its very interesting to see things like this.
You should get a Diecast model and use that. If you get one of the good ones they have a lot of the same features as a real S.
Again great job! Its very interesting to see things like this.
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Joined: Oct 2000
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From: Longmont, CO
I wish I had your toys. 
Nice confirmation of the high pressure area at the base of the windshield. I'm surprised that the back corner of the hood doesn't show a low pressure area like some folks have claimed.
Another tidbit - the tail lights have a clear plastic cover that extends a little beyond the curve of the body panels. The S2000 designer specifically mentioned that this was for aero purposes.
Nice confirmation of the high pressure area at the base of the windshield. I'm surprised that the back corner of the hood doesn't show a low pressure area like some folks have claimed.Another tidbit - the tail lights have a clear plastic cover that extends a little beyond the curve of the body panels. The S2000 designer specifically mentioned that this was for aero purposes.