Wei Shyy's group at the University of Florida Gainsville has done some
windtunnel work on wings with flexible membrane upper surfaces.
J. M. V. Rayner wrote:
There is quite likely to be more from the Bannasch/Rechenberg group than
I am listing - they have gone as far as full-scale flight tests with
flexible upper wing surfaces as a means of controlling airflow over the
wing.
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