Reduced-scale experiments for railway applications

The specifications of a new rig (HISTAR) are presented as well as some of its technical aspects. The aim of this facility is to complement existing rigs for the railway aerodynamic research and the development of future high-speed ground transportation systems in the velocity range beyond 250 km/h (up to 500 km/h). An important conclusion is that the analysis of viscous effects will be more and more necessary to understand the aerodynamic phenomena and their impact on high-speed ground transportation systems.