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Old 04-15-2009, 08:27 PM   #11 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,534

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 57.73 mpg (US)
Thanks: 4,082
Thanked 6,979 Times in 3,614 Posts
Getting back to windshield separation bubbles...

A Ford Tempo (the one Frank refers to here) can't be any worse than the 1st gen Golf/Rabbit - even it has attached flow at the windshield base, says Herr Hucho. (I should start quoting someone else - I'm wearing out the "HUCHO" keys on my computer...)

He says:

Quote:
Even smoke photographs on standard production vehicles with comparatively steep windshields [see Fig. 1.2 - refers to image of the 1st gen Golf] reveal no separation at this location. The reason is that, as a rule, the junction [between hood & windshield] does not have a sharp corner but is rounded, and the windshield is curved; both of these features reduce the tendency for flow separation. (p. 160, ch 4, 4th ed)

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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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