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Old 04-25-2007, 01:33 AM   #1
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Let's Discuss the Aero Features of This Truck

Volvo BeeVan Truck Concept
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Old 04-25-2007, 01:39 AM   #2
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I would like to see that in a van or mobile home too - makes sense and a great idea.
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Old 04-25-2007, 05:06 AM   #3
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Weeeellllll, it looks safe, but not so aerodynamic... To me anyway.
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Old 04-25-2007, 05:21 AM   #4
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First reaction: Holy Rumpler, Batman!

Right down to the central driving position and absense of external mirrors.




Second thought: the transition from the top of the windshield to the roof seems too sharp (even Rumpler's car appears to have a more generous curve at that point). The fact that engine cooling is exhausted through the roof is interesting, but even considering that would help to raise pressure behind the transition, it's a little hard to believe the sharp angle wouldn't generate a lot of turbulence. Would be interesting to see a smoke or tuft test to visualize airflow up there.

A similar test would be interesting at the lower part of the windshield to see the effect on flow of those cooling inlets at its base.

Other stuff: nice tight front wheel arch to tire gaps; smooth & flush bodywork from the front to rear wheels is good; the wheels themselves could be cleaner - the diagram appears to show a dish shape. Why not go smooth?
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Old 04-25-2007, 06:01 AM   #5
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the shape might be intended to deflect more air sideways than over the truck.

the sides of a truck+trailer would easyly make out two to thee times more the aerodynamic surface than the top of the trailer so yo might want to keep the flow attached as much as possible there. the front roofline looks as though it might defect the air upward and since most trailers are higher than the truck this migh work in combination with the standard roof fairing in front of the trailer.

i'd like to see this design on the road, as it offers much better sideway visibility. many cyclists die every year because they're in a blind spot of trucks making a right turn.
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Old 04-25-2007, 06:42 AM   #6
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Yep deflecting the air to the sides gives twice the amount of room for the air to get out of the way as going over the top. Simple curved windshield works best optically and is the next best shape to a sphere. It also forces air downwards away from the top and reduces glare - ever have a flat windshield blind you from the sun reflection?
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Old 04-25-2007, 06:48 AM   #7
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Truck design being relatively slow to change, I'm glad to see Volvo proposing something as radical as this.

With this design, Volvo semi drivers should be aware of any drafters in their vicinity. I think we can appreciate that!
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Old 04-25-2007, 08:42 AM   #8
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Gee, I'd hate to get a windshield crack in that one! Spendy.
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Old 04-25-2007, 08:50 AM   #9
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Looks like they're catching up to Colani... Except he did it in the 80's


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Old 04-25-2007, 09:37 AM   #10
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I guess it looks good. The fact remains,, we need to stop long haul trucking. Only use them for Local and reginal PUD. The trains need to be doing the heavy cross country stuff.

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