Prof. em. Dr.-Ing. Dr. techn. E. h. Dr. h. c. Jürgen Zierep held the Chair of Fluid Mechanics at the Karlsruhe Institute of Technology (KIT) and is Honorary Professor at BUAA (Beijing University for Aeronautics and Astronautics). Prof. Dr.-Ing. habil. Karl Bühler teaches and conducts research at Offenburg University of Applied Sciences in the Faculty of Mechanical and Process Engineering.