Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Rear Wheel arch ducting to rear to minimise base drag??

Tesla · 04-05-2012, 05:34 AM

MetroMPG
Found that Merc thread with the tail light ducting below,
http://ecomodder.com/forum/showthrea...trol-6075.html
The tiny slits they have would not be capable of any serious ducting, I think thaey were there primarily to give clear seperation at the body edge, like vortex generators, so rather than putting a sharp edge on the lights like they are doing moreso now, they chose to eject some sharp straeams of air, which simulate a sharp edge and give clear seperation of air from the body.
That's my interpretation.
My direction would require quite a bit more volume, to help drop pressure at rear and and hence reduce drag, more like the uk study linked in one of the posts above..

04-05-2012, 05:34 AM	#10 (permalink)
Tesla Master EcoModder Join Date: Feb 2012 Location: Australia Posts: 355 The Truck - '02 Nissan GU Patrol ST Thanks: 5 Thanked 76 Times in 50 Posts	MetroMPG Found that Merc thread with the tail light ducting below, http://ecomodder.com/forum/showthrea...trol-6075.html The tiny slits they have would not be capable of any serious ducting, I think thaey were there primarily to give clear seperation at the body edge, like vortex generators, so rather than putting a sharp edge on the lights like they are doing moreso now, they chose to eject some sharp straeams of air, which simulate a sharp edge and give clear seperation of air from the body. That's my interpretation. My direction would require quite a bit more volume, to help drop pressure at rear and and hence reduce drag, more like the uk study linked in one of the posts above..