1. Dept. of Chemical Engineering and Chemistry; Eindhoven University of Technology; 5600 MB Eindhoven The Netherlands
2. Institute of Fluid dynamics; Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstr; 400, 01328 Dresden Germany
3. AREVA Endowed Chair of Imaging Techniques in Energy and Process Engineering; Technische Universitaet Dresden; 01062 Dresden Germany