Model tests about cross wind effects on containers and wagons in atmospheric boundary layers

Abstract Extensive model investigations of the forces and moments on a container on a flat wagon due to strong cross winds on wind-exposed sites were done in a boundary layer wind-tunnel. Comparisons of these results with others achieved in low turbulence wind-tunnels on larger scales show an influence of the turbulence and in some cases of the Reynolds-number too. The differences caused by these effects in calculating the maximum allowable train speed to prevent overturning for a given wind speed are in some cases significant.