列車近傍圧力場に対する遮蔽壁の低減効果(流体工学,流体機械)  [in Japanese] Dumping Effect of a Wall on the Near Pressure Field Around a Train(Fluids Engineering)  [in Japanese]

The near pressure field formed around a high-speed train causes a vibration problem such as window rattling in railside residential areas. This paper investigates the effect of a wall along a track on the near pressure field both theoretically and numerically. The potential flow model of a flow around a train shows that the pressure fluctuation is reduced by the velocity field of the doublet generated on the wall. From the result with the panel method, we also find that the pressure reduction by the wall is a function of the ratio of the wall height to the distance from the train and is independent of the wall position.