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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/7791

    Title: 沙質海岸前灘區之沙漣形狀與沈滓輸移量關係之研究
    Other Titles: A Study on the Relation between Net Sediment Transport & the Geometry of Ripples on Sandy Swash Zone
    Authors: 林意楨
    Contributors: 淡江大學水資源及環境工程研究所
    Keywords: 向離岸漂沙;沙洲;沙漣;前灘區;on-offshore sediment;sand bar;sand ripples;foreshore region
    Date: 1993
    Issue Date: 2009-03-16 17:05:04 (UTC+8)
    Abstract: 本研究之目的在探討沙質海岸前灘區(swash zone) 之淨沉滓輸移量,波所造成海底沙漣之尖銳度及 謝爾德參數(ShieldParameter)三者之間的關係.假設溯升及回降(Uprush & backwash)並不相互影響彼 此之輸沙能力,利用數值分析方法模擬不同波高( Boreheight),不同海底粒徑,不同海底波度所形成的 沙漣連續變化情形,依沙漣幾何形狀的變化探討 其與謝爾德參數間之關係.前灘區在波作用下之淨輸沙量亦可由數值模式算出,依所形成之不同 尖銳度的沙漣研究其與輸沙量間的關係,所得結 果將與實驗之結果相比較,並討論之.在第一年(民國七十九年)之計畫,黃及林(1990)和Lin (1991)已依線性淺水波理論模擬波浪至淺水波適用 之極限.在第二年的研究中,將往後之回降過程依自由落 體運動模擬其流力模式部分(Ho & Meyer, 1962),並依 此過程的結果推算輸沙量之變化以研究沙洲成長 之過程.
    Appears in Collections:[Graduate Institute & Department of Water Resources and Environmental Engineering] Research Paper

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