1. R.B. Annis School of Engineering, University of Indianapolis, Indianapolis, IN, USA
2. School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA
3. Department of Mechanical Engineering, Union College, Schenectady, NY, USA
4. Department of Mechanical Engineering, Texas Tech University, Lubbock, TX, USA
5. Department of Mechanical Science and Engineering, University of Illinois, Urbana, IL, USA
6. Department of Wind Energy, Institute for Energy Technology (IFE), Kjeller, Norway