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    Title: 底床質在前灘區內運移之數值模擬
    Other Titles: A Numerical Model Of The Bed Load Sedimentation On The Foreshore Region
    Authors: 黃信元;林意楨
    Contributors: 淡江大學水資源及環境工程學系
    Keywords: 數值計算;有限差分法;輸砂;前灘區;底床質;Numerical Calculation;Finite Difference Method;Sediment Transportation;Foreshore Region;Bed Load Sediment
    Date: 1990-07-06
    Issue Date: 2010-01-11 16:45:46 (UTC+8)
    Publisher: 臺北市:中國土木水利工程學會
    Abstract: 根據Meyer & Taylor(1972)的研究指 出,有限振幅淺水波理論可用來描述波浪之溯升 。本研究依此理論利用顯性 Lax-Wendroff的有 限差分法模擬波之溯升;再由所模擬的結果配合底床質運移之經驗公式,並假設溯升及其回 降(Uprush & Backwash)並不相互影響彼此之 輸沙能力。依不同坡度,不同波高(bore height),不同之海底粒徑模擬底床質運移的情 形。同時針對計算結果討論底床質之淨運移量 與各相關因素的關係。
    According to Meyer & Taylor (1972), the finite amplitude shallow water wave theory is adequate to describe the wave run-up on a beach. In this study, we use explicit Lax-Wendroff scheme to simulate finite amplitude shallow water wave running on a uniform slope beach. Assuming that the uprush and the backwash don't affect each capability to move the sediments, we examine the quantities of onshore -offshore sediments under different slopes, bore heights, and periods. Discussions on the results are presented as how to extend the future usage of this numerical model.
    Relation: 第五屆水利工程研討會論文集(二)=PROCEEDINGS OF 5TH CONFERENCE ON HYDRAULlC ENGINEERING,頁753-763
    Appears in Collections:[水資源及環境工程學系暨研究所] 會議論文

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