1. Department of Mechanical Engineering Department, University of Louisville, 332 Eastern Parkway, Louisville, KY 40292, USA
2. Department of Mechanical Engineering, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, USA
3. Conn Center for Renewable Energy Research, University of Louisville, 216 Eastern Parkway, Louisville, KY 40208, USA