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研究生:吳姿潓
研究生(外文):Wu,Zihhuei
論文名稱:計算流力在潰壩波與結構物之研究
論文名稱(外文):Interaction of Dam-break Waves with Structures by Computational Fluid Dynamics
指導教授:羅德章羅德章引用關係
指導教授(外文):Lo,Derchang
口試委員:張志華陳昭銘謝志敏
口試委員(外文):Chang,ChihhuaChen,JaumingHsieh, Chihmin
口試日期:2011-06-15
學位類別:碩士
校院名稱:國立高雄海洋科技大學
系所名稱:海事資訊科技研究所
學門:運輸服務學門
學類:航海學類
論文種類:學術論文
論文出版年:2011
畢業學年度:99
語文別:中文
論文頁數:69
中文關鍵詞:潰壩波計算流體力學福祿數
外文關鍵詞:dam break wavescomputational fluid dynamicsFroude number
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本研究應用FLOW-3D套裝軟體模擬潰壩波通過結構物的運動,主要探討潰壩波與結構物互制時,流體液面變化及內部流場等運動特性。數值方法以Navier-Stokes方程式來求解流體動力學問題,以流體體積法描述自由液面之運動,以有限差分法來離散網格。數值計算結果藉由試驗資料驗證,本研究試驗數值計算結果與試驗值相當吻合。因此本研究沿用了實驗的架構,模擬變動結構物幾何大小和潰壩波水位高度之流場,包括探討結構物受力情況、流體速度分布及不同水位高度自由液面變化、福祿數隨時間變化的情況。


In this study, FLOW-3D package simulation of dam break waves will be focused on the interaction of waves and structures when the dam break waves over the structures. Numerical modeling is based on the finite difference method for solving Navier-Stokes equations including the free surface effect. Numerical results were demonstrated by the experimental data, the results show good agreement with the experimental values in the literature. This study follows the experimental framework to simulate the interaction of waves and structures for various parameters of structures and various water elevations of the dam break problems. We computed the acting force of structure due to the water impacting on the structure, velocity distribution, and elevation of free surface, as well as the changes of Froude number vs. time-based variation in the computational domain.
中文摘要
Abstract
致謝
目錄
圖目錄
表目錄
符號說明
英文縮寫
第一章 緒論
1-1 前言
1-2 研究動機與目的
1-3 文獻回顧
1-3-1 潰壩模擬方法
1-3-2 前人研究成果
1-4 本文架構
第二章 理論架構
2-1 理論簡介
2-2 Navier-Stokes 之控制方程式
2-3 流體體積法(Volume of fluid)
2-4 RNG(Renormalization Group Model)重組化群紊流模式
第三章 模擬方法與步驟
3-1 模擬軟體簡介
3-1-1 FLOW-3D○R之核心技術
3-2 數值模擬前處理
3-2-1 模擬流程
3-2-2 模型建置
3-2-3模擬時間與物理條件設定
3-2-4 規劃模擬方案
3-2-5 網格設置
3-2-6 邊界條件設定
3-2-7 求解設定(Numerics)
3-3 數值模擬後處理
第四章 結果分析與討論
4-1模式驗證
4-2 本研究模擬案例結果
4-2-1案例一–結構物長寬比之分析
4-2-2案例二、三–雙結構物之橫向與縱向距離分析
4-2-3案例四–變換結構物幾何分析
4-2-4案例五–雙圓柱形結構物橫向距離分析
4-2-5案例六–不同水位高度之分析
4-2-6探討案例二、案例六之渦流強度
第五章 結論與建議
5-1 結論
5-2建議
參考文獻


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