Comparison of the Trackside Pressure with Respect to Different Nose Lengths of High-Speed Trains

Abstract

This paper used the detached eddy simulation (DES) method, compared the effects of different nose lengths of trains on the trackside pressure. The measuring points are arranged according to the CEN standard requirements. It shows that the maximum peak to peak pressure value Cp, in the required position, decreases with the increasing nose length by a quadratic polynomial relationship. The trackside pressure amplitudes, that induced by trains with nose lengths of 4 m and 5 m, exceed the limit value of CEN standard in the specified positions. Keywords: nose length, trackside pressure, CEN standard