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Old 10-23-2014, 03:23 PM   #183 (permalink)
aerohead
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separation line

Quote:
Originally Posted by California98Civic View Post
The way the streamline hugs the side, around the bumper and passing the front wheel skirt, is cool. The movement over the hood, windshield, and roof was striking--the flow just hugs the surface of the body. And it loved your lingering use of the wand to "see" the wake at the aft end of the truck. Seejng the separation line and that stagnation point of sorts under the aft end was fun too. Fully worth it. Every penny.
In some instances the streamline smoke filament seemed a bit 'nervous'.When I held the wand against the body there was no descernible counterflow,so I couldn't really detect any separation except behind the wheels/tires,mirror and its mounting/A-pillar-to-sideglass.,the rear-view cap window fenestration,and behind the stinger truncation.
The diffuser area did look unstable,but when the wand was held to the surface it showed attached flow.
The tail seemed to demonstrate the cambered flow both on top and sides with a very healthy turbulent boundary layer.
One problem with the truck is that cap establishes a flow pattern which is mutilated when it nears the plane of the bed top rails and flat portion of the cap,losing flow continuity as the taper has to 'begin again' at the boat tail.
I'd like to run the skirts all the way down,but it adds frontal area,and the fronts would strike curbs when parking,as the wheels are off-center when approaching.
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