1983 Dipl.-Ing. in Mechanical Engineering, RWTH Aachen University, Germany. 1987 Dr.-Ing. in Mechanical Engineering, RWTH Aachen University, Germany. 1987 – 1989 Postdoc, Applied Mathematics Department, California Institute of Technology, USA . 1989 – 1994 German Aerospace AG, Head of Aerothermodynamics, Space Infrastructure, Munich, Germany. 1994 – 1998 Professor of Mathematics and Statistics, Braunschweig University of Applied Sciences, Germany. since 1998 Director of the Institute of Aerodynamics at RWTH Aachen University, Germany. 2010 – 2012 Dean of the Department of Mechanical Engineering, RWTH Aachen University. 2013 - 2018 Member of the Strategy Board, RWTH Aachen University. Since 2021 Dean of the Department of Mechanical Engineering, RWTH Aachen University.