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          1. CFD-based design method of airflow prevention device in core area of ski jumping event in Winter Olympics

            Li Ziwei, Zhang Mingqi, Chen Hongzhong, Cheng Pengfei, Lin Borong and Cao Bin

            2021.09.26

            The stable airflow in the core area of the ski jumping event is of vital importance to the safety of athletes. In order to meet the climate protection needs of the ski jumping event, proposes a simulation-based design method and a process for the airflow prevention device shape in the core area of the track. Uses the CFD simulation method to accurately control the maximum lateral wind speed on the movement streamline to not exceed 5 m/s. Taking into account the aesthetic characteristics of the device, designs an irregularly curved airflow prevention device, which can ensure the safety of athletes and improve the spectator’s watching experience. The simulation analysis shows that the climate protection device proposed in this work can significantly increase the area of the low wind speed area below the track profile movement streamline, improve the overall airflow stability of the track profile, and effectively solve the problem of difficult wind environment intervention in the core area of ski jumping.

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