Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Aero in the dust (El Mirage pics of my car)

California98Civic · 06-17-2015, 09:23 AM

Here are a couple other pictures showing the recirculation zone in the photos in post #1. These are closeups showing how high the recirculation zone extended from the back bumper cover:

1) here you can see small amounts of dust on top of the "CVCC" badge (btw, the badge is for a history claim about the vehicle, not a technical claim about my particular engine):

2) here you can see fairly clearly what was totally apparent when looking at the car live. The recirculation zone at the tail of the car did not cross onto the trunk lid. A sharp line in the dust can been see where the radius from the taillight section meets the aft portion of the trunk lid.

I know from tuft test images of my car (see this link) that there is a recirculation zone behind the rear window too. But this shows that part of the flow briefly re-attaches and in doing so differentiates the tail light zone from the rear window zone.

06-17-2015, 09:23 AM	#8 (permalink)
California98Civic Cyborg ECU Join Date: Mar 2011 Location: Coastal Southern California Posts: 6,299 Black and Green - '98 Honda Civic DX Coupe Team Honda 90 day: 66.42 mpg (US) Black and Red - '00 Nashbar Custom built eBike 90 day: 3671.43 mpg (US) Thanks: 2,373 Thanked 2,172 Times in 1,469 Posts	Close-up pictures of the recirculation zone Here are a couple other pictures showing the recirculation zone in the photos in post #1. These are closeups showing how high the recirculation zone extended from the back bumper cover: 1) here you can see small amounts of dust on top of the "CVCC" badge (btw, the badge is for a history claim about the vehicle, not a technical claim about my particular engine): 2) here you can see fairly clearly what was totally apparent when looking at the car live. The recirculation zone at the tail of the car did not cross onto the trunk lid. A sharp line in the dust can been see where the radius from the taillight section meets the aft portion of the trunk lid. I know from tuft test images of my car (see this link) that there is a recirculation zone behind the rear window too. But this shows that part of the flow briefly re-attaches and in doing so differentiates the tail light zone from the rear window zone. Attached Thumbnails __________________ See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.