Bad example. I found it first when I was looking for this:
https://ecomodder.com/forum/showthre...ics-17717.html
Quote:
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Originally Posted by Frank Lee
Why add the frontal area?  |
Adding interior volume. So long as the curve respects The Template, flow can reattach to the (admittedly short) flat top. There's normally a low pressure area behind the top edge.
Alternatives would be a row of vortex generators or a blown slot.
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.Necessity is the mother of invention, but simplicity is it's favorite aunt --Amish proverb
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