11-05-2011, 02:40 PM
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#1 (permalink)
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Cyborg ECU
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299
Thanks: 2,373
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Wiper delete rain trails
On my car in the rain yesterday, I reinstalled my driver's side front wiper blade, as I always do on the somewhat rare rainy or misty days here in coastal Southern California. This time, I mounted the arm as low into the cowl behind the hood as possible. I photographed how my rainy window behaved on the driver's side and the passenger side. In other, earlier reinstalls for rainy days, I had mounted the wiper arm at stock position and noticed the rain droplets on my rainX coated windows behaved very differently, with droplets sitting on the window behind and slightly above the wiper arm. This time, with the arm much lower, I observed that the rain drops on the wiper-less and wiper-installed sides behaved the same way. At speeds as high as 62 mph, the drops seemed to have the same size and density and ability to stay put on the windshield at the same heights.
The down side is a loss of some of the wiper blade's water clearing near the A-pillar on the driver's side.
If anyone is interested in the photo, I'll find the cables and upload from my phone.
__________________
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.
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11-05-2011, 02:54 PM
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#2 (permalink)
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Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
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cowl
Quote:
Originally Posted by California98Civic
On my car in the rain yesterday, I reinstalled my driver's side front wiper blade, as I always do on the somewhat rare rainy or misty days here in coastal Southern California. This time, I mounted the arm as low into the cowl behind the hood as possible. I photographed how my rainy window behaved on the driver's side and the passenger side. In other, earlier reinstalls for rainy days, I had mounted the wiper arm at stock position and noticed the rain droplets on my rainX coated windows behaved very differently, with droplets sitting on the window behind and slightly above the wiper arm. This time, with the arm much lower, I observed that the rain drops on the wiper-less and wiper-installed sides behaved the same way. At speeds as high as 62 mph, the drops seemed to have the same size and density and ability to stay put on the windshield at the same heights.
The down side is a loss of some of the wiper blade's water clearing near the A-pillar on the driver's side.
If anyone is interested in the photo, I'll find the cables and upload from my phone.
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This cowl area is intentionally designed to be 'dead',to aid in fresh air cabin ventilation.
You'll see in smoke flow visualization images that the rest of the airflow just jumps over this stagnant area. |
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06-03-2013, 03:28 PM
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#3 (permalink)
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Master EcoWalker
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998
Thanks: 1,711
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No need to undo the wiper delete; just go get a hitchhiker. And a broom.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
  lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.
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