(傅，2012)於2012年發展一「海上自動控溫及混合型波動光生物反應器」，其主要目的為利用海洋無窮盡的能量以減少微藻生產過程中所需之能源消耗。本研究以Fluent 軟體建立一三維數值水槽探討其水平隔板水槽在耦合(縱移、橫移)情形下，水槽內液體擺盪的情況。以及以不同寬度之隔板配置於水槽不同位置時，其水槽內液體因隔板引致的渦流並帶動沉降於水槽底部的微藻向上流動，達到內部液體之攪拌混合效果。

本研究其理論基礎建立於計算流體力學軟體 Fluent，配合User Defined Function (UDF)模擬水槽震盪，以及Volume of Fluid (VOF)處理自由液面。為驗證數值的正確性，本模式會進行一連串的驗證運算，比對文獻上已發表的數值及實驗結果，並以研究室所建立的實驗設備來加以比對模擬的結果。

根據數值模擬結果可以得知水槽受外力震盪時，其內部流體之流速並非影響液體混合效率最重要的因素，隔板所引致的渦流可以有效的增加微藻的混合效率。而在不同的隔板配置下，可以發現當隔板所引致的渦流可以涵蓋整個水槽時其內部流體的混合效率可以到達最高點。

Fu was developed an innovation Photobioreactor,’’ Automatically Tempe-rature Controllable and Wave-Mixed Photobioreactor System , ATCWPS’’ at 2012. The main of the function is let the microalgae can be grown under a stable temperature by the high specific heat of seawater , and use the energy of waves to achieve the mixed effect by sloshing a tank. When a tank with the horizontal baffles, the liquid sloshing caused the vortex to push more microalgae mixed, and increase the efficiency of mixed from the bottom of a sink.

The theoretical basis of this study is established at computational fluid dyn-amics software "Fluent" , that simulate tank sloshing with User Defined Function (UDF) , as well as the free surface being Volume of Fluid (VOF) method tracked and calculated . For the accuracy of numerical simulation , this study was verified by rigorous benchmark tests , that compared with the numerical analysis of biblio-graphy, and the result of experiment by equipment on hand.

According to the simulation results can be affected when the external shocks that sinks its internal fluid flow rate of the liquid mixing efficiency is not the most important factors, caused vortex separator can effectively increase the mixing efficiency microalgae. In different baffles configuration, when vortex caused by baffles can cover the entire internal tank fluid mixing efficiency can reach the highest point.

謝誌 　i
中文摘要 ii
Abstract iii
目錄 iv
符號說明 vii
表目錄 ix
圖目錄 x
第 1 章 緒論 1
1.1 前言 1
1.2 研究背景與動機 1
1.2.1 溫室效應 1
1.2.2 石化能源危機 4
1.2.3 世界糧食危機 6
1.3 生質能源 7
1.3.1 微藻 7
1.3.2 生質燃料 9
1.4 文獻回顧 9
1.4.1 微藻培養系統 9
1.4.2 海洋波浪動力混合系統模型 10
1.5 研究目的 11
第 2 章 理論 14
2.1 基本假設 14
2.2 統御方程式 15
2.3 邊界條件 16
2.3.1 自由液面邊界條件 16
2.3.2 固液分界面邊界條件 17
2.3.3 浮體結構物邊界條件 18
第 3 章 數值方法與實驗設計 20
3.1 震盪隔板水槽數值方法 20
3.1.1 SIMPLE演算法 21
3.1.2 使用者自定義函數 22
3.1.3 流體體積法 23
3.1.4 模式精準度測定與分析 23
3.2 震盪隔板水槽實驗配置 27
3.3 研究流程 31
第 4 章 結果與討論 32
4.1 實驗數據與數值分析之擬合驗證 35
4.1.1 具垂直隔板之水槽 35
4.1.2 具水平隔板之水槽 37
4.2 單一隔板 40
4.2.1 隔板對波高與共振頻率的影響 41
4.2.2 隔板對渦流的影響 46
4.2.3 隔板配置高度對混合的影響 56
4.2.4 旋轉波 (Swirling Wave) 60
4.3 對稱隔板 68
4.3.1 對稱隔板對共振頻率的影響 68
4.3.1 對稱隔板對渦流的影響 70
4.3.2 隔板配置高度對混合的影響 72
4.3.3 作用角度與旋轉波關係 79
4.4 各類型隔板配置的效率比較 86
第 5 章 討論與建議 90
5.1 結果 90
5.2 建議及未來展望 91
第 6 章 參考文獻 92
附錄A 單一水平隔板流場圖 95
附錄B 震盪波 113
附錄C 流體粒子追蹤法 115

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