SURFACE PRESSURE ON THE NOISE ABSORBING BOARD OF HIGH-SPEED RAILWAY TRACK

摘要

Taking Cheng-Guan railway as an example, the compressible Navier-Stokes equations and k-e turbulent model is based to build a three-dimensional CFD model to research the pressure distribution on noise absorbing board surface using numerical method in this paper. The maximum negative pressure is given at different train speed and the noise absorbing thickness. The research results in this paper can be a reference to the design of absorbing board for High-railway.