Based on some articles I've accumulated over the last year, here are some universities that may have research in your area.
"Effects of blade tip modifications on wind turbine performance using vortex model"
University of California Davis
"Gurney flap—Lift enhancement, mechanisms and applications" (my favorite device)
Beijing University of Aeronautics and Astronautics
"Dynamic stall on a supercritical airfoil"
Institute of Aerodynamic and Flow Technology, German Aerospace Centre (DLR), Göttingen, Germany
"Numerical study of passive and active flow separation control
over a NACA0012 airfoil"
Department of Mathematics, University of Texas at Arlington, Arlington, TX 76019, United States
I think South Dakota State of Minds probably has something as well (just a guess)