Dr. Röhle invented a new kind of Laser-2-Focus-Velocimeter and he set-up a visualisation technique for shocks in transonic compressor in the frame of a six month stay abroad in 1997 at the ONERA in Palaiseau near Paris. He regularly published in reviewed journals, gave invited lectures at short courses and advised PhD-students and diploma-workers. As a team leader, he carried out a large number of projects for industrial customers. To broaden his management experiences, Dr. Roehle was given the opportunity to work for the board of directors of DLR for two years. There he was involved in space politics and took over the responsibility for the establishment of the DLR_School_Labs.
In 2003, Dr. Röhle moved to the Section of Turbulence Research in Berlin to take over the management of several running projects in the field of combustion acoustics as.
The Helmholtz-University Young Investigators Group gives him the possibility to set-up his own research group, widely independent but never the less fully integrated in a university institute with a long successful tradition and with a very close association to the German Aerospace Center.