1. Zittau/Goerlitz University of Applied Sciences, Institute of Process Technology, Process Automation and Measuring Technology, Theodor-Koerner-Allee 16, 02763 Zittau, Germany
2. Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzner Landstr. 400, 01328 Dresden, Germany
3. TU Dresden, AREVA Endowed Chair of Imaging Techniques in Energy and Process Engineering, 01062 Dresden, Germany