高速列车动车头形风洞试验研究

THE RESEARCH ON NOSE SHAPES OF HIGH SPEED TRAIN'S POWER CAR WITH THE WIND TUNNEL TEST

高速列车动车头部外形对高速列车气动性能有很大影响。为了探索这一问题，在8m×6m风洞中对高速动车头形六种不同方富的气动特性及其对有限编组列车气动性能的影响进行了试验研究，结果表明，车头形状以具有较大细长比．其表面无拐角且曲率变化较小的2次元形状的头型气动性能最好。

The nose shape of high speed train's power car has great influence on the aerody-namic performance of high speed train. In order to study this problem, the influence of aerodynam-ic performance by the high speed train's six nose shapes of power car and its limited marshalling train has been studied in 8m × 6m wind tunnel. The results show that the nose shape of power car with the best aerodynamic performance is the second order dimentional shape with larger nose slenderness ratio, less curvature change and without any corners on its surface.