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An experimental study of airflow behaviour around a standard 2-man bobsleigh

机译：标准2人横向围绕的气流行为的实验研究

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摘要

This paper examines the aerodynamic behaviour of a standard 2-man bobsleigh. Wind tunnel experiments were undertaken on a 50% scale model of 2-man bobsleigh. Wool tufts and smoke were used to visualise the airflow characteristics around the bobsleigh. It was found that the air enters into the bobsleigh cavity through multiple paths. The results suggest that the optimisation of the bumpers, particularly the rear bumpers, is not significantly effective for reducing the aerodynamic drag. Hence, better aerodynamic performance can be achieved by altering the size and shape of the nose as well as the sidewall curvature.
机译：本文探讨了标准的2人横杆的空气动力学行为。在2-Man Bobsleigh的50％规模模型中进行了风洞实验。羊毛簇绒和烟雾用于可视化横轴围绕的气流特性。发现空气通过多个路径进入横向腔。结果表明，保险杠的优化，特别是后保险杠，对减少空气动力学阻力没有明显有效。因此，通过改变鼻子的尺寸和形状以及侧壁曲率可以实现更好的空气动力学性能。

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