Development of a large hi-speed shutter for a practical implementation of fluctuating wind direction tunnel and confirmation of aerodynamic force measurement methods

本研究旨在开发一种可用于大尺寸波动风向风洞的大型高速百叶窗。该隧道有望模拟自然风的波动风向特征。部落制造的百叶窗可以在0.2秒内降低大面积试验段的风速。所开发的百叶窗被认为适用于大尺寸波动风向风洞。验证了一种能够消除脉动风洞随风向变化等静压波动影响的压力测量方法的有效性。

This study was conducted to develop a large high-speed shutter that can be used with a large size fluctuating wind direction tunnel. The tunnel is expected to be able to simulate the fluctuating wind direction characteristics of natural wind. The tribally manufactured shutter could decrease the wind speed within 0.2 second over large area of the test section. The developed shutter is thought to be applied with a large size fluctuating wind direction tunnel. Also a pressure measurement method was confirmed to be effective that can remove the effects of the static pressure fluctuation such as that with wind direction change of fluctuating wind direction tunnel.