Wind-proof effect of different kinds of wind-break walls on the security of trains
Wind-proof effect of different kinds of wind-break walls on the security of trains
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发表时间：
2006
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通讯作者：
Liu Feng-hua
中科院分区：
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作者：
Liu Feng-hua
对四种防风墙列车的气动力进行数值模拟计算，采用二维不可压缩粘性N-S方程，在侧风速、高度、防风墙位置和路堤高度相同的情况下，计算结果表明，筋式防风墙列车的侧向力和倾覆力矩最小，其防风效果最好，而“L”形和过薄的墙体次之，但土型的影响最小。
The numerical simulation calculation was carried out to obtain the aerodynamic force of the trains with four kinds of wind-break walls.The two dimension incompressible viscous N-S equation was used,with the cross-wind speed,height,position of wind-break wall and height of the embankment being the same.Calculation results show that the lateral force and overturning moment of the train are the smallest for the wind-break wall of the tendon type,so its wind-proof effect is the best,while the effects of the wall with "L" shape and over-thin rank second,but the effect of the earth type is the least.