Dr.-Ing. habil. Frank Holzäpfel graduated as a mechanical engineer from the University of Karlsruhe (TH) in 1990. He then specialized in measurement and modelling of turbulent swirling flows at the Engler-Bunte-Institute, Chair of Combustion Technology in Karlsruhe, where he obtained his Dr.-Ing. in 1996. In 1997 he became a Research Scientist at the Institute of Atmospheric Physics, DLR (German Aerospace Center) in Oberpfaffenhofen, where he concentrates on wake vortex research, including large eddy simulation, real-time wake vortex model development, field experiments, wake vortex advisory systems, risk analysis, and wake vortex decay enhancement. In 2005 he obtained his Habilitation in Fluid Dynamics at the Faculty of Mechanical Engineering of the Technical University Munich where he was an associate lecturer from 2007 to 2009. In 2014 he was awarded the title Senior Scientist.