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
Date Issued
2001
Date
2001
Author(s)
許銘熙
DOI
892211E002141
Abstract
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
Subjects
wave propagation
boundary fitted coordinate
free surface
darn break
Publisher
臺北市：國立臺灣大學生物環境系統工程學系暨研究所
Type
report
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