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Bicycle Bob · 08-24-2009, 03:31 AM

Well, there's a reason an anemometer spins in the direction it does, so a concave front end is not harmless. It can contain a turbulent zone, and thicken the boundary layer.

08-24-2009, 03:31 AM	#14 (permalink)
Bicycle Bob EcoModding Apprentice Join Date: May 2008 Location: N. Saskatchewan, CA Posts: 1,805 Appliance White - '93 Geo Metro 4-Dr. Auto Last 3: 42.35 mpg (US) Stealth RV - '91 Chevy Sprint Base Thanks: 91 Thanked 460 Times in 328 Posts	Well, there's a reason an anemometer spins in the direction it does, so a concave front end is not harmless. It can contain a turbulent zone, and thicken the boundary layer.