標準形溢洪道數值計算

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Title:	標準形溢洪道數值計算
Other Titles:	Numerical Simulation of Flow over Spillway
Authors:	許中杰;李紋綜
Contributors:	淡江大學水資源及環境工程學系
Keywords:	溢洪道;有限差分法;黏滯性;數值模擬;壓力分布;Flow Over Spillway;Finite Difference Method;Viscosity;Numerical Simulation;Pressure Distribution
Date:	1992-07-10
Issue Date:	2010-01-11 16:37:32 (UTC+8)
Abstract:	本研究以有限差分數值法模擬水流流經無閘門,標準型溢洪道之二維不可壓縮、黏滯性定常流流況。假設已知溢洪道近似流量,水庫上游遠處之總能量水頭及水庫底床與溢洪道結構體之高程,應用貼壁座標轉換,將流線控制方程式與旋度傳輸方程式及其不規則邊界於物理平面之非正交網格轉換至計算空間之平行直線網格。模擬在不同的操作水頭下自由水面高程及溢洪道表面之壓力分布。其結果與二維無黏滯性非旋性定常流的流況及與美國陸軍工兵團水道實驗站之實驗數據做比較,並考慮黏滯性對數值模擬之影響。 In this study, the boundary-fitted coordinate transformation and the SOR finite difference method are applied to simulate two dimensional flow over standard type spillway, which free surface elevation is unknown and the approximate discharge is given. The numerical results of the flow field at different operation heads are in good agreements to the experimental data obtained by Waterway Experimental Station. The results are also compared to the results obtained by the assumption of inviscid, irrotational flow. It is found that the difference is small.
Relation:	第六屆水利工程研討會論文集(上冊)=Proceedings of 6th Conference on Hydraulic Engineering，頁70-81
Appears in Collections:	[Graduate Institute & Department of Water Resources and Environmental Engineering] Proceeding

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標準形溢洪道數值計算.docx	摘要	13Kb	Microsoft Word	108	View/Open
標準形溢洪道數值計算_西文摘要.docx	摘要	13Kb	Microsoft Word	104	View/Open

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