1. Institute of Thermomechanics, Czech Academy of Sciences Department of Fluid Dynamics, , Dolejškova 1402/5, Prague 182 00 , Czech Republic
2. Duke University, Pratt School of Engineering Department of Mechanical Engineering and Material Science, , Durham, NC 27708
3. Technical University of Liberec Department of Mechatronics, , Studentská 1402/2, Liberec 460 01 , Czech Republic