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論文中文名稱:應用EFDC模擬淡水河水理 [以論文名稱查詢館藏系統]
論文英文名稱:Using EFDC to simulate Steady flow of the Tanhsui River’s [以論文名稱查詢館藏系統]
院校名稱:臺北科技大學
學院名稱:工程學院
系所名稱:土木與防災研究所
畢業學年度:103
畢業學期:第二學期
出版年度:104
中文姓名:蕭宇吟
英文姓名:Hsiao,YuYing
研究生學號:102428069
學位類別:碩士
口試日期:2015/07/13
指導教授中文名:陳彥璋
口試委員中文名:陳建宏;高蘇白;廖翊鈞
中文關鍵詞:EFDC、淡水河、水理模式
英文關鍵詞:EFDC、Tanhsui river、Numerical Simulation
論文中文摘要:在已知的水文資料下運用水理模式,對於河川、河口等水域進行泥沙、汙染物質、有機物質等物質傳輸模擬,已是在水文分析中不可或缺的一部份,在近年台灣常用之水理模式軟體中,如HEC-RAS、SMS等,而於本研究中所要使用之水理模式為台灣尚少研究之數值模式,而此模式之模擬數據精度、準確性及模式之功能性也更好。
EFDC (Environmental Fluid Dynamics Code)是個水動力模式,可用於模擬一維到三維的流體、物質傳輸,可用於模擬河口、河川、河流、湖泊、水庫等水域,且同時可考慮風、浪、及潮汐之影響,在國外已經應用於許多個海域模擬,且已發展套裝軟體成為國外常用之水理模式之一。
本研究為探討整個EFDC運行架構,故藉由EFDC之源始碼來研究整個水理模式的運行方法,並逐步產生EFDC所需之輸入檔,其中包含地文、流量及網格等資料,並結合Surfer軟體做出EFDC最主要之流域形狀,最後應用於淡水河流域上進行初步之水理模擬,然後與水工模型、數值模式SMS進行比較,將其分為淡水河主流及二重疏洪道進行詳細比較說明,定量流之模擬與兩者比較有些點位偏高或者偏低現象產生些許之跳動,此現象因未考慮其他外在因素或參數設置不同所致,但整體而言模擬結果極為相似,故也確定 EFDC運用模擬之可行性。
論文英文摘要:With regards to rivers, estuary of the body of water, mass transfer simulation can be conducted for silt, polluted substance, and organic substance under the already known hydrologic data while applying aquatic treatment model, has therefore, become an indispensable part of the hydrological analysis. In the recent years, the frequent used of aquatic treatment software of Taiwan such as HEC-RAS, SMS etc., and the numerical value model of the aquatic treatment model used by this research that has rarely been used by the research of Taiwan previously, has proven to be precise in simulating data, with accuracy and the functionality of its model that has proven to be even better.
EFDC (Environmental Fluid Dynamics Code) is a aquatic dynamics model that can be used to simulate fluid of one to three dimensions, substance transmissions, which can be used to simulate body of water such as estuary, rivers, streams, lakes, and reservoirs, at the same time, to consider the effect of wind, waves, and tides, with many simulations that have been applied in ocean areas of the nations abroad, what’s more, sets of software have been developed as one of the aquatic treatment model that has been used frequently in many of the foreign countries.
This study is to explore the entire EFDC run architecture, and through the original code of EFDC to research the running methods for the entire aquatic treatment model, and to step by step produce the input file needed by EFDC, which includes ground reference, flow and mesh etc., and to combine with Surfer software to create the main shape of the flow area for EFDC, finally to apply on the Tanhsui river flow area to conduct the initial aquatic treatment simulation, then with the hydraulic model, numerical model to compare SMS, and to divide into Tanhsui river mainstream and Erchong floodway to proceed with detail comparison explanation. To compare simulation of quantitative flow with both analog, some point of the fluctuation a little higher or lower with phenomenon of sloshing, this phenomenon has not considered other external factors or cause of different parameter setting, but overall simulation results are very similar, therefore, it is confirmed that to apply EFDC simulation can be feasible
論文目次:摘 要 i
ABSTRACT iii
誌 謝 v
圖 目 錄 viii
表 目 錄 x
第一章 緒論 1
1.1 前言 1
1.2 研究目的及動機 1
1.3 論文架構簡介 2
第二章 文獻回顧 4
2.1 EFDC模式之應用 4
2.2 國內常用水理模式 6
2.2.1 一維水理模式 6
2.2.2 二維水理模式 9
第三章 研究範圍及方法 12
3.1 研究範圍 12
3.2 EFDC模式 14
3.2.1 模式介紹 14
3.2.2 模式架構 15
3.2.3 EFDC之控制方程式 16
3.3.4 數值分析 21
3.3 模式應用 23
3.3.1 模式限制 23
3.3.2 子程式讀取順序 25
3.3.3 EFDC輸入及輸出檔 26
3.3.4 EFDC模式網格 29
第四章 模擬結果與討論 33
4.1 淡水河網格建置 34
4.2 模式參數之設定 40
4.2.1 初始條件 41
4.2.2 邊界條件 45
4.3 演算結果比較 46
第五章 結論與建議 54
5.1 結論 54
5.2 建議 55
參考文獻 56
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