1. Assistant Professor, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
2. Professor, Division of Fluid and Experimental Mechanics, Lulea University of Technology, Lulea SE 971 87, Sweden
3. Associate Professor, Hydraulics, Hydraulic Machinery and Environmental Engineering Department, University POLITEHNICA of Bucharest, 313, Splaiul Independentei, Bucharest, Romania