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    題名: Numerical Prediction of Airfoil Ice Accretion Growth
    作者: Wan, Tung;Yuan, Tang-chun;Lee, Jiun-jie
    貢獻者: 淡江大學航空太空工程學系
    關鍵詞: Ice accretion;Droplet equation of motion
    日期: 2008-12
    上傳時間: 2013-03-20 16:27:27 (UTC+8)
    出版者: 台南市:中國航空太空學會
    摘要: Ice accretion phenomenon is one of the major weather factors for aircraft accident. Generally speaking, the accreted ice is occurred when air temperature is below the freezing point, and water droplets appear in the form of super-cooled water; once these droplets impact with the leading edge of wing, then ice accretion will form gradually. Faced with this accretion problem, we try to use CFD method to solve it. The procedure can be divided into three steps; first is the unstructured grid generation, then flow field solver, and finally is the equation of motion for droplets impact. This equation of motion for droplets is a function of time and velocity, so we can predict the moving direction and location of the droplets after certain time interval, and then judge whether the droplets impact the airfoil or not. Thus iteratively regenerate ice layers until the time we request. According to this research result, although still rather difficult to predict the ice shape precisely, our ice growth trend generally fits existing data.
    關聯: Journal of Aeronautics, Astronautics and Aviation. Series A 40(4), pp.253-260
    顯示於類別:[航空太空工程學系暨研究所] 期刊論文

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