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VGs
In the photo-albums is an article about VGs that an aeronautical engineer came up with to help flow re-attachment on notchback cars with steep backlights.The car in the article is a Honda Accord.
On aircraft without suction slots or blown wings,VGs can be placed near the wing gap to help the flow re-attach onto a lowered flap at very high angle of attack during landings to prevent stalling.
Hucho tells that on an automotive trailing edge,with no downstream surface for which flow might re-attach,that the benefit of VGs found under 2-dimensional flow flight conditions cannot be duplicated under 3-D flow of bluff bodies in ground proximity.
Which is a polite way to say,forget about them.
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