"中华之星"高速列车综合空气动力性能研究

介绍了我国即将投入运营的“中华之星”高速列车空气动力性能研究过程：数值计算、风洞试验、动模型试验、在线实车试验;对两种不同头形的高速列车交会压力波、列车空气阻力、列车表面压力分布、气动升力、横向气动力、列车对周围环境的影响等空气动力性能进行了研究;分析了动力车冷却风道一位百叶窗空气流向、流速。结果表明,“中华之星”高速列车具有良好的空气动力性能,能够满足安全运行的要求。

Study of comprehensive aerodynamic performance for "China Star" high speed EMU

Research process of the aerodynamic performance for "China Star" high speed EMU ispresented: the numerical calculations, wind channel test, dynamic module test and field running test. Study isdone to the aerodynamic performances like the crossing pressure wave of two high speed trains with differenthead shapes, train air resistances, surface pressure distribution, aerodynamic lifting force, lateral aerodynamicforce, and influence of train on surrounding environment. Analysis is done to the flow direction and speedthrough the first louver of power car cooling channel. The results show that "China Star" features high aerody-namic performances and meet the safety running requirement.