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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/109065

    題名: Characteristics of Wind Pressures on a Cooling Tower Exposed to Stationary and Translating Tornadoes with Swirl Ratio 0.54
    作者: Cao, Shuyang;Wang, Jin;Cao, Jinxin
    關鍵詞: Tornado Vortex;Cooling Tower;Wind Pressure;Aerodynamics
    日期: 2016-09
    上傳時間: 2017-01-03 09:20:29 (UTC+8)
    出版者: 淡江大學出版中心
    摘要: Current wind-resistant design of wind-sensitive structures including large-scale cooling towers
    is generally carried out with respect to synoptic boundary-layer-type strong winds. A swirling tornado
    can produce significantly different wind pressures than conventional boundary-layer wind. This paper
    presents both stationary and translating tornado effects on a cooling tower in a tornado vortex
    simulator developed at Tongji University, China. Wind pressures acting on the external surface of
    cooling tower model were measured at a fixed swirl ratio (S = 0.54) in the present study. Different
    radial distances between a cooling tower and stationary tornado vortex center were considered.
    Translating tornadoes with three different translation speeds (u = 0.04 m/s, 0.12 m/s and 0.2 m/s) were
    simulated. The results show that a tornado vortex can produce high negative wind pressures on a
    cooling tower surface due to the negative pressure drop accompanying a tornado. A cooling tower
    exposed to a tornado experiences combined effects of pressure drop accompanying a tornado and
    aerodynamic flow-structure interaction.
    關聯: Journal of Applied Science and Engineering 19(3), pp.285-292
    DOI: 10.6180/jase.2016.19.3.06
    顯示於類別:[淡江理工學刊] 第19卷第3期


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