Railway vehicles are endangered by strong crosswinds, catastrophic accidents having already occurred in the history of railway transportation. This problem, aggravated by the continuous improvement of the lightweight characteristics of modern rolling stock, has eventually become a neuralgic point in the design and homologation of vehicles.
Accordingly, the project NGT includes a joined work package on this topic, in which DLR-Institute of Aerodynamics and Flow Technology contributes the aerodynamic design of the NGT including windtunnel measurements.
At DLR-RM, the research is focussed on the effects of the aerodynamic forces on the running safety of the railway vehicle. In particular we work on three fronts:
Stochastic wind crosswind velocity for running safety analysis (Related CFD results of the DLR-Institute of Aerodynamics and Flow Technology are given for visualisation.)