The aim of the present study is to improve the aerodynamic performance of the bobsled as a function of its shape and the relative position of the athletes inside the bobsled. This performance optimization problem is studied by means of wind tunnel testing. The aerodynamic responses of the manned and unmanned bobsleigh are analysed in terms of overall drag force measurements. Experimental results show that the proposed modifications to the sidewalls and the nose section of the bobsled improve its drag performance. The relative position of the driver and the brakeman has a great influence on the drag of the bobsled
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