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研究生：	郭平巧 Kuo, Ping-Chiao
論文名稱：	養殖池水車配置數值模擬研究 Numerical simulation of paddlewheel setup in culture ponds
指導教授：	黃煌煇 Hwung, Hwung-Hweng
學位類別：	碩士 Master
系所名稱：	工學院 - 水利及海洋工程學系 Department of Hydraulic & Ocean Engineering
論文出版年：	2009
畢業學年度：	97
語文別：	中文
論文頁數：	85
中文關鍵詞：	死區、曝氣機、水車、二維水理模式、養殖池
外文關鍵詞：	dead zone, hydrodynamic model, aquaculture pond, aerators, paddlewheel
相關次數：	點閱：105 下載：9
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本研究之目的是應用二維水動力數值模式模擬分析水車擺放位置對養殖池水動力之影響，首先蒐集分析西南海岸養殖池相關資料，選定適當養殖池進行水深與水動力資料調查，以提供作為數值模式驗證之用。並以二維水動力(TW2D1)模式為基礎，在模式中加入水車運轉動力機制。再以量測資料進行模式之校驗，最後將經校驗後的模式應用於模擬分析養殖池水車配置對養殖池流場之影響。

本研究以數值模式分別探討分析同面積下長方形狀與正方形狀養殖池在不同水車數量、配置條件下之養殖池水動力狀況，並依死區（Dead Zone，流速V≤ 0.02m/ sec ）佔整個養殖池面積之比例來研判水車配置是否良好。模式模擬結果顯示，在改善現地養殖池水車配置方案中，放置二台與三台水車之較佳方案分別為N2c 與N3f 配置。在相同面積之長方形狀和正方形狀養殖池中，放置一台、二台與三台水車之較佳方案分別為R1g、R2d、R3a、S1f、S2d 與S3a，而正方形養殖池之死區面積遠較狹長長方型養殖池低。在既有面積3450 m^2 下（單位面積）若要降低狹長長方形養殖池之死區面積，其長寬比小於0.47 者，水車至少要兩台以上，然而水車數量增加，電費成本亦將隨之升高。本文之研究成果可提供漁民作為決定養殖池形狀與水車擺放位置之參考依據。

The purpose of this study is to simulate the aquaculture pond hydrodynamics under various quantities and position of paddlewheels using two-dimensional hydrodynamic numerical model（TW2D1）. First of all, we analyze the collected information of different ponds in the south-western coast, and then select the appropriate culture pond to measure the water depth and the hydrodynamics which can be used to verify the 2-D hydrodynamic model including a paddlewheel driven circulation module.

The 2-D hydrodynamic model is used to simulate the hydrodynamics of aquaculture pond under the same area of rectangular-shaped and square-shaped culture ponds with different quantities and positions of the paddlewheel, respectively. Dead zone was defined as V≤ 0.02m/ sec. The uniformity of flow field was investigated by the ratio of dead zone. The results show that in the case of the improved distribution of paddlewheel in shrimp culture ponds, it is better to use two sets of paddlewheel （N2c）and three paddlewheel （N3f）compared with the original condition. For the same area of the rectangular-shaped and square-shaped culture ponds, the better cases placed one or two of paddlewheel, and three paddlewheel were R1g, R2d, R3a, S1f, S2d and S3a. The dead zone of the square-shaped culture ponds is lower than the narrow-rectangular culture ponds under the same area. If we want to reduce the ratio of dead zone in the existing narrow-rectangular culture ponds（3450 m^2 ）, the aspect ratio less than 0.47,it should be placed at least two or more paddlewheel sets. However, the electricity costs will also rise when the number of paddlewheel increase. The future goal on this model can be used to evaluate the optimum design of the shape of culture pond and optimum position of the paddlewheel.

目錄
中文摘要...........................................................................................................I
英文摘要..........................................................................................................II
誌謝.................................................................................................................III
目錄.................................................................................................................IV
表目錄...........................................................................................................VII
圖目錄..........................................................................................................VIII
第一章 緒論......................................................................................................1
1-1 前言............................................................................................................1
1-2 研究目的....................................................................................................2
1-3 文獻回顧....................................................................................................3
1-4 本文組織....................................................................................................9
第二章 基本資料蒐集調查與分析...............................................................10
2-1 養殖池......................................................................................................10
2-1.1 養殖池之形狀與水深...........................................................................10
2-1.1 養殖物種...............................................................................................13
2-2 儀器設備..................................................................................................14
2-2.1 曝氣機...................................................................................................14
2-2.2 電容式波高計.......................................................................................16
2-2.3 電磁式流速儀.......................................................................................18
2-3 量測數據..................................................................................................20
2-3.1 水位.......................................................................................................22
2-3.2 流速.......................................................................................................23
2-3.2 風速.......................................................................................................25
第三章 二維水動力模式...............................................................................26
3-1 水動力模式..............................................................................................26
3-1.1 控制方程式...........................................................................................26
3-2 數值方法..................................................................................................30
3-2.1 差分方程式...........................................................................................31
3-3 模式率定驗證..........................................................................................36
第四章 養殖池水車最佳配置模擬...............................................................43
4-1 現地應用討論..........................................................................................43
4-1.1 一台水車配置.......................................................................................45
4-1.2 二台水車配置.......................................................................................45
4-1.3 三台水車配置.......................................................................................47
4-2 不同形狀養殖池......................................................................................49
4-2.1 長方形養殖池.......................................................................................50
4-2.1.1 一台水車配置....................................................................................51
4-2.1.1 兩台水車配置....................................................................................55
4-2.1.1 三台水車配置....................................................................................57
4-2.2 正方形養殖池.......................................................................................58
4-2.2.1 一台水車配置....................................................................................60
4-2.2.2 兩台水車配置....................................................................................64
4-2.2.3 三台水車配置....................................................................................66
4-3 最佳化配置討論......................................................................................68
第五章 結論與建議.......................................................................................77
5-1 結論..........................................................................................................77
5-2 建議..........................................................................................................78
參考文獻........................................................................................................79
附錄................................................................................................................81
自述................................................................................................................85
                                    

參考文獻
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校外：2009-06-23公開

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