General ??: Windshield design to reduce buffeting

[oldbike54]

usually attached at right angles to the encabulator.

You'll learn all about it here.
https://www.youtube.com/watch?v=W9LXG7rPQfE

 Love that video John 

 Guessing a tubulator is somehow involved in the embedding of nano-tags in modern oils that investigators use to determine if customers are using the proper brand and weight of oil . You know , for warranty claims and such 

 Dusty

[toaster404]

Intstead of putting on turbulators I just put the whole thing in the turbulatron, then it's good forever!

The Wheeler vortex generators are actually very effective. I have a corner turbulence control concept using them I have to work on.

[Testarossa]

Has anyone tried to apply vortex generators to a motorcycle fairing?

[Testarossa]

Righto. Gary Wheeler.


http://www.ducati.ms/forums/44-multistrada/138752-vortex-generators-windscreen.html

[toaster404]

Exactly, although they do a bit better with tails.  Create counter-rotating double vortex systems, so thinking about how those will help tame bubble generators is important.  On my cruiser, I rode along on the Interstate using a grease pencil to mark the airflow lines all over the place, and feeling where the bubbles were worst.  That information guided my placement.  I didn't crash or get stopped by law enforcement for a mental checkup!

I even put a line on a helmet once, which were very effective.

Next, I'll hammer golfball dents into the bodywork!

[bib]

Here is what I think I know about air management .

 Mostly a nice still pocket of air is dependent on equalizing pressure . Proper venting seems to be the key , I experimented with airflow on a BMW airhead RT fairing , winglets , foils , lips , etc . In the end it came down to venting the windshield , had the same results with a police style windshield used on a naked beemer and a Jackal . Take a look at the Pacifica Aerofoil/Swanee/H&H fairing which is the best handlebar mount design ... EVER . The body is vented , as is the shield .

 Dusty

Go with Dusty ... made one prototype and two practical wind shields from 3mm acrylic. The turbulence around the head comes from air pressure differences behind the shield compared to the front .. varies with wind speed and ambient pressure - continually.
The best design will incorporate an adjustable sized opening that seks to minimize the differential pressure. Once you achieve that then the strakes, if used will come into effect.

[Waterbottle]

usually attached at right angles to the encabulator.

You'll learn all about it here.
https://www.youtube.com/watch?v=W9LXG7rPQfE

You are a bad man JohnR, I can't wait to show that to the guys at work.

[toaster404]

Has anyone tried to apply vortex generators to a motorcycle fairing?

I had them stuck on my Memphis Shades batwing.  Ended up only being useful at the corner where the the hand protection lumps swing up to the windshield and along the edge of the windshield.  I had a summer low barrier with them all along the top edge - made for a distinctly less turbulent and narrower band of disturbed air between the sheltered air and the full slipstream.  They need not be large, so long as they're in a nicely moving part of the laminar boundary layer.  Want them oriented along the air flow.  Cross winds change the air flow and their effect changes, but I don't know how, can just reach out and feel things working differently.   Having to watch the road and ride interferes with careful testing!!