Study on Aerodynamic Performance of Gondola Cars with Different Loadings under Crosswind
According to the different loading conditions of gondola car,the aerodynamic performance of the gondola car under three conditions of empty-load,half-load and full-load was studied.The reserch results show that the change law of the aerodynamic force of a single gondola car is consistent with that of the whole vehicle,the aerodynamic drag of empty-load train is the largest,followed by half-load train,and full-load train is the least.The aerodynamic lift force of full-load train is the largest,half-load train comes to the second,and empty-load train is the least.The lateral forces of the three trains are very close with the biggest difference as merely 1.9％.The aerodynamic force of empty-load and half-load gondola car is relatively close,while full-load gondola car has a significant gap with the former two models.
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