1. Department of Mechanical and Aerospace Engineering; University of Virginia; 122 Engineer's Way Charlottesville Virginia 22904 USA
2. Department of Aeronautics and Astronautics; Stanford University; 496 Lomita Mall Stanford California 94305 USA
3. Department of Aerospace Engineering; University of Illinois at Urbana-Champaign; 104 S. Wright St Urbana Illinois 61801 USA
4. National Wind Technology Center; National Renewable Energy Laboratory; 1617 Cole Blvd Golden Colorado 80401 USA