An experimental study of the effect of Dielectric Barrier Discharge plasma actuators on the flow separation on the A-pillar of a modern truck under cross-wind conditions has been carried out. The experiments were done in a wind tunnel with a 1:6 scale model of a tractor-trailer combination. The actuators were used as vortex generators positioned on the A-pillar on the leeward side of the tractor and the drag force was measured with a wind-tunnel balance. The results show that the effect at the largest yaw angle (9 degrees) can give a drag reduction of about 20% and that it results in a net power reduction. At lower yaw angles the reduction was smaller. The present results were obtained at a lower Reynolds number and a lower speed than for real driving conditions so it is still not yet confirmed if a similar positive result can be obtained in full scale.

中文翻译：

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用于卡车流动分离控制的等离子流向涡流发生器

对介质阻挡放电等离子体致动器在侧风条件下对现代卡车 A 柱流动分离的影响进行了实验研究。实验在风洞中进行，采用 1:6 比例的拖拉机-拖车组合模型。执行器用作位于拖拉机背风侧 A 柱上的涡流发生器，并使用风洞天平测量阻力。结果表明，在最大偏航角（9 度）下的效果可以减少约 20% 的阻力，并导致净功率降低。在较低的偏航角下，减少较小。