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kach22i · 04-08-2014, 02:46 PM

Oval tubing may be around if you look for it, McMaster-Carr?

McMaster-Carr

I would suggest using flat rectangular solid stock, narrow end facing the wind.

The area in CdA is pretty important, I for one would not be increasing the size of a tube for attachment. A smaller size is a smaller footprint of resistance.

One thing to consider questioning is the assumption that the wind is going to act the same in free-flow as it would with the broad face of a radiator behind it. The pressure zone or pocket of air in front of the vehicle has got to be a significant factor with bullbars.

Aerocaps for pick-up trucks

Mechanical Engineering Help - Technical Talk

FORE! CFD just went mainstream | Design & Motion

Aerodynamic Drag Effects of Pickup Truck Bed Configurations
http://johnversteeg.com/projects/CFD/

http://www.pro-touring.com/archive/i...p/t-69262.html

There is more pressure build up front than air flow found at the front of the truck.

Like I said, just keep away from the edges and you should do fine.

04-08-2014, 02:46 PM	#32 (permalink)
kach22i Master EcoModder Join Date: Jul 2011 Location: Ann Arbor, Michigan Posts: 4,187 Thanks: 132 Thanked 2,809 Times in 1,973 Posts	Oval tubing may be around if you look for it, McMaster-Carr? McMaster-Carr I would suggest using flat rectangular solid stock, narrow end facing the wind. The area in CdA is pretty important, I for one would not be increasing the size of a tube for attachment. A smaller size is a smaller footprint of resistance. One thing to consider questioning is the assumption that the wind is going to act the same in free-flow as it would with the broad face of a radiator behind it. The pressure zone or pocket of air in front of the vehicle has got to be a significant factor with bullbars. Aerocaps for pick-up trucks Mechanical Engineering Help - Technical Talk FORE! CFD just went mainstream \| Design & Motion Aerodynamic Drag Effects of Pickup Truck Bed Configurations http://johnversteeg.com/projects/CFD/ http://www.pro-touring.com/archive/i...p/t-69262.html There is more pressure build up front than air flow found at the front of the truck. Like I said, just keep away from the edges and you should do fine. __________________ George Architect, Artist and Designer of Objects 2012 Infiniti G37X Coupe 1977 Porsche 911s Targa 1998 Chevy S-10 Pick-Up truck 1989 Scat II HP Hovercraft You cannot sell aerodynamics in a can............ Last edited by kach22i; 04-09-2014 at 07:43 PM..