Abstract
Based on a 1:8 scaled moving model rig and a model of high-speed train (HST), the slipstream of 3~8 group type model was measured and studied at the train speed of 57m/s with a scaled moving model technique in a train aerodynamic experiment. The group type impacting on slipstream was analysed. The location and magnitude of the local leading nose peak, the local trailing nose peak and the near-wake peak of slipstream with different group type were calculated and classified. A detailed analysis was conducted on the change of slipstream with the change of group type. The results are helpful to the optimized group type in model experiment of HST’s slipstream.
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