تقرير
行政院國家科學委員會專題研究計畫成果報告:陡坡渠道潰壩流況之水理分析
| العنوان: | 行政院國家科學委員會專題研究計畫成果報告:陡坡渠道潰壩流況之水理分析 |
|---|---|
| المؤلفون: | 許銘熙 |
| بيانات النشر: | 臺北市：國立臺灣大學生物環境系統工程學系暨研究所 |
| سنة النشر: | 2001 |
| المجموعة: | National Taiwan University Institutional Repository (NTUR) |
| مصطلحات موضوعية: | wave propagation, boundary fitted coordinate, free surface, darn break, 波傳, 邊界閉合座標, 自由水面潰壩 |
| جغرافية الموضوع: | 計畫年度：89 第二期, 起迄日期：2000-08-01/2001-07-31 |
| الوصف: | The wave propagation of darn break flows in a sloping smooth channel was simulated by numerical model in this paper. In order to obtain movable boundaries on the free surface, the techniques of the moving grids and boundary-fitted coordinate system presented by Thompson are adopted. The solutions were obtained by transforming the irregular physical domain into regular computational domain. The governing equations of the two-dimensional momentum and continuity equations were solved simulataneously by using the finite difference scheme on nonstaggered grids. The arbitrary Lagrangian ¡X Eulerian (ALE) kinematic description was applied in the procedure of calculation. The numerical model was verified by experimental data of wave propagation due to a darn failure. As a result, the model was used to simulate and analyse the wave propagation of dam break in different sloping channel ; 本文主要在以數值方法模擬斜坡渠道上潰壩流場之波傳。為掌握自由水面不規則移動邊界之變化，採用動格網方式配合邊界閉合座標法，並將不規則物理平面座標轉換成規則之計算平面上進行求解。對於二維動量及連續方程之控制方程式之求解，探用非交錯格網系統以有限差分法離做控制方程式，並以交替拉格蘭吉‧尤拉運動描述法來模擬自由水面之波傳現象。本文利用潰壩流場之實驗資料作為模式之驗證，進而模擬各渠床坡度之潰壩流場。 |
| نوع الوثيقة: | report |
| وصف الملف: | application/pdf; 1762721 bytes |
| اللغة: | Chinese |
| العلاقة: | 892211E002141; http://ntur.lib.ntu.edu.tw/handle/246246/10685Test; http://ntur.lib.ntu.edu.tw/bitstream/246246/10685/1/892211E002141.pdfTest |
| الإتاحة: | http://ntur.lib.ntu.edu.tw/handle/246246/10685Test http://ntur.lib.ntu.edu.tw/bitstream/246246/10685/1/892211E002141.pdfTest |
| حقوق: | 國立臺灣大學生物環境系統工程學系暨研究所 |
| رقم الانضمام: | edsbas.DA0F923F |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |