11-10-2011, 09:36 PM
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#1 (permalink)
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EcoModding Apprentice
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Front bumper shape
Time has come to redo my front bumper. Which is better for aerodynamics, a wedge shape or a rounded over shape?
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Today
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11-10-2011, 10:04 PM
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#2 (permalink)
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Master EcoModder
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11-11-2011, 10:41 AM
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#4 (permalink)
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Master EcoModder
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How can I navigate to this section of the site? Obviously, from the link notation, it is some ref material that Phil put onto the site, but I don't see a way to navigate to the material.
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11-11-2011, 10:50 AM
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#5 (permalink)
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Master EcoModder
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Quote:
Originally Posted by jimepting
How can I navigate to this section of the site? Obviously, from the link notation, it is some ref material that Phil put onto the site, but I don't see a way to navigate to the material.
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Do you mean the links don't work for you or what?
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He gave me a dollar. A blood-soaked dollar.
I cannot get the spot out but it's okay; It still works in the store
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11-11-2011, 10:51 AM
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#6 (permalink)
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Hypermiler
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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11-11-2011, 10:54 AM
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#7 (permalink)
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Master EcoModder
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__________________
He gave me a dollar. A blood-soaked dollar.
I cannot get the spot out but it's okay; It still works in the store
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11-11-2011, 11:21 AM
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#8 (permalink)
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Aero Deshi
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If you want inspiration for a front end, look at modern current model cars. They seem to be an air dam type thing low, below midheight. The air dam tends to remain flatter out to the sides so it "pushes" the air out away from the messiness that is the front wheels. Above midpoint, it is all rounded radius to start the air on its trip over the top.
Like This.
or This
I wonder what the CD penalty is for the hood ornament???
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11-12-2011, 07:43 PM
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#9 (permalink)
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EcoModding Apprentice
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That is a lot of help. Thanks. I have been looking at cars coming out now though, and what is with the flat front look. It just appears that having a tall flat bumper would actually cause a negative effect. Does anyone have data on how this effects aerodynamics?
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11-13-2011, 05:22 AM
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#10 (permalink)
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Master EcoModder
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The alternative is a sloping bumper and front end, which doesn't look as good. Bulldog noses are in fashion.
A bullet shape funnels air under the car which creates front end lift.
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