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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 林國峰 | |
| dc.contributor.author | Chang-Chun Chen | en |
| dc.contributor.author | 陳昌俊 | zh_TW |
| dc.date.accessioned | 2021-06-16T08:47:18Z | - |
| dc.date.available | 2013-08-26 | |
| dc.date.copyright | 2013-08-26 | |
| dc.date.issued | 2013 | |
| dc.date.submitted | 2013-08-20 | |
| dc.identifier.citation | (1) 郭文達、賴進松、張向寬、林詠彬、張國鎮，(2011a)，「現地橋梁沖刷之數值模擬分析-以濁水溪中沙大橋為例」，台灣災害管理研討會 。
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Le Grelle (2008): Dam-break induced sediment movement: Experimental approaches and numerical modelling. Journal of Hydraulic Research, 46:2, 176-190 (60) Zhou, J.G., Causon, D.M., Mingham, C.G., and Ingrams, D.M., (2001). “The surface gradient method for the treatment of source terms in the shallow water equations.” Journal of Computational Physics, 168, 1-25. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/59057 | - |
| dc.description.abstract | 本文主要以試驗的方式來觀測潰壩流流經下游之運動形態，文中包含定床試驗及動床試驗。而根據前人之研究，研究維度可分為一維試驗及二維試驗，但在量測動床變化仍侷限於一維試驗。前人的研究鮮少探討底床與時間歷程之變化關係，故本試驗進行潰壩流之二維動床試驗，並進一步探討動床床型隨時間變化的關係。
本文利用雷射切頁以及數位影像分析量測潰壩流流經下游隨時間之變化關係。於定床案例中，上游初始水深分別為5公分、10公分及15公分。而在動床部份則分別設定上游水深為5公分、10公分及5公分，上游動床分別設定為5公分、10公分及10公分，下游動床則設定為5公分、10公分及7.5公分。而雷射切頁以及數位影像分析量測則是從壩下游側往下游距離45公分內之範圍，則量測所有試驗條件下，水位隨時間變化與動床高度隨時間之變化。本研究同時納入數值模式，分析其於定床試驗之適用性，並提供試驗資料作為後續模式發展之用。 | zh_TW |
| dc.description.abstract | The study observes dam break flow through downstream movement patterns by experiment methods. This paper contains the fixed bed model and moving bed model tests. Base on previous research, the research of various dimension model could be classified into one-dimensional model and two-dimensional model, but the measurement of the movable bed change is still restricted to one-dimensional experiment. Previous studies rarely investigated the relationship between the seabed changes and time ; therefore, this study conducted in the dam break flow test in two-dimensional movable bed and further explore the relationships of movable bed type and time.
The laser sheet and digital images analysis will be used in analyzing measurements the change over time of the dam break flows through downstream. In fixed bed model experiments, the depth of initial upstream water includes 5 cm, 10 cm and 15 cm. And in the moving bed model, the depth of initial upstream water includes 5 cm, 10 cm and 5 cm, upstream bed were set at 5 cm, 10 cm and 10 cm, and downstream bed is setting to 5 cm, 10 cm and 7.5 cm. The laser sheet and digital image analysis measurement range is 45 cm from the rear gate, we would exactly measure the water level changes over time and bed height change over time in all test conditions. The study also includes numerical model to analyze the suitability of fixed bed and moving bed trial model and provide experiment data for further innovational development. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T08:47:18Z (GMT). No. of bitstreams: 1 ntu-102-R00521313-1.pdf: 12380450 bytes, checksum: c1c9b60af29b044d23ecd60aa79864c1 (MD5) Previous issue date: 2013 | en |
| dc.description.tableofcontents | 目錄
口試委員審定書 I 誌謝.................. II 中文摘要.......... III 英文摘要........... IV 目錄.................... V 圖目錄............... VIII 表目錄............... XVI 第一章 緒論 1 1-1 研究動機與目的 1 1-2 文獻回顧. 2 1-3研究流程.. 4 1-4 章節介紹.. 5 第二章 試驗設備與步驟 6 2-1 試驗水槽... 7 2-2 量測設備. 12 2-3 試驗步驟. 15 2-3-1 定床試驗之試驗步驟 15 2-3-2 動床試驗之試驗步驟 17 2-3-3 試驗數據分析流程 21 第三章 潰壩流試驗成果分析 24 3-1 試驗技術檢定 24 3-1-1 案例編號(1)之試驗結果 25 3-1-2 案例編號(2)之試驗結果 29 3-2 定床試驗檢定案例 32 3-2-1 案例編號(3)之試驗結果 35 3-2-2 案例編號(4)之試驗結果 38 3-2-3 案例編號(5)之試驗結果 40 3-2-4案例編號(6)之試驗結果 43 3-2-5案例編號(7)之試驗結果 45 3-2-6案例編號(8)之試驗結果 48 3-3動床試驗之誤差檢定 50 3-3-1 靜止狀況之試驗結果 51 3-3-2 流動狀況之試驗結果 52 3-3-3 動態狀況之試驗結果 53 3-4 動床試驗案例 58 3-4-1 案例編號(9)之試驗結果 59 3-4-2 案例編號(10)之試驗結果 72 3-4-3 案例編號(11)之試驗結果 85 第四章 二維潰壩水砂耦合動床模式 97 4-1基本控制方程 97 4-2 FVM離散及FMUSTA算則 100 4-2-1 FVM離散 100 4-2-2 FMUSTA算則 101 4-2-3 底坡源項數值處理 103 4-2-4 數值穩定與邊界條件 105 4-3 試驗模式設定 107 4-3-1 案例編號(3)之試驗模擬結果 107 4-3-2 案例編號(4)之試驗模擬結果 109 4-3-3 案例編號(5)之試驗模擬結果 112 4-3-4案例編號(6)之試驗模擬結果 114 4-3-5案例編號(7)之試驗模擬結果 117 4-3-6案例編號(8)之試驗模擬結果 119 第五章 結論與建議 122 5-1 結論......... 122 5-2 建議......... 123 參考文獻 123 | |
| dc.language.iso | zh-TW | |
| dc.subject | 潰壩 | zh_TW |
| dc.subject | 定床 | zh_TW |
| dc.subject | 動床 | zh_TW |
| dc.subject | 二維 | zh_TW |
| dc.subject | 時間歷程 | zh_TW |
| dc.subject | moving bed | en |
| dc.subject | fixed bed | en |
| dc.subject | two-dimensional | en |
| dc.subject | time series | en |
| dc.subject | dam-break | en |
| dc.title | 應用影像分析於潰壩後下游動床與水面變動之研究 | zh_TW |
| dc.title | Water-surface/bed level measurements of dam-break flow over movable bed by using laser-based digital image analysis | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 101-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.coadvisor | 賴進松 | |
| dc.contributor.oralexamcommittee | 林文欽 | |
| dc.subject.keyword | 潰壩,定床,動床,二維,時間歷程, | zh_TW |
| dc.subject.keyword | dam-break,fixed bed,moving bed,two-dimensional,time series, | en |
| dc.relation.page | 128 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2013-08-20 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
| 顯示於系所單位： | 土木工程學系 | |
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