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车身导流板是载货车上的一个附件,它通过跨接牵引车和挂车间的一部分间距,降低载货车空气阻力。车身导流板限制了通过牵引车-挂车间隔中的横向气流,将大力矩不足的情形降低至最小程度。若不使用导流板,挂车背风面会出现明显的大力矩不足,导致车辆尾流范围显著增加,空气阻力随之增大。图1给出了牵引车-挂车列车顶视图,标出了车身导流板对流经牵引车-挂车列车的气流可能发生的影响。
The body deflector is an accessory on the truck that reduces the air resistance of the truck by straddling a portion of the spacing between the tractor and trailer. The body deflector limits the lateral flow in the tractor-trailer compartment to minimize the large torque deficiencies. Without the deflector, the overturned face of the trailer will have a significant large torque failure, resulting in a significant increase in vehicle wake range and increased air resistance. Figure 1 shows a top view of a tractor-trailer train, indicating the possible impact of the baffle on the airflow through the tractor-trailer train.