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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/987654321/77239

    題名: Modified Thermal Theory for Gravity Currents on Sloping Boundaries
    作者: Dai, Albert
    貢獻者: 淡江大學水資源及環境工程學系
    關鍵詞: Detrainment;Entrainment;Gravity currents;Thermal theory
    日期: 2010-10
    上傳時間: 2012-06-14 09:11:25 (UTC+8)
    出版者: Reston: American Society of Civil Engineers
    摘要: In this study, we generalize the classic thermal theory to account for both entrainment and detrainment effects occurring in the acceleration and deceleration phases of gravity current motion. Although the original thermal theory qualitatively captures the two phases of gravity current motion, the pure entrainment model appears to underpredict the gravity current velocity and the distance before the maximum velocity is reached. We theoretically show that detrainment increases the predicted maximum velocity of gravity current and extends the predicted distance before the maximum velocity is reached. Furthermore, based on the experimental data reported in the literature, the detrainment coefficient appears to increase as the bottom slope increases.
    關聯: Journal of Hydraulic Engineering 136(10), pp.826-830
    DOI: 10.1061/(ASCE)HY.1943-7900.0000244
    顯示於類別:[水資源及環境工程學系暨研究所] 期刊論文


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