近幾年內微全分析系統(μ-TAS)的發展日益精進，使微機電技術(MEMS)得以快速的發展，利用此技術製作的微管道液滴裝置具有檢測樣本需求量少、體積較小、實驗成本低等優點，但隨著近幾年來應用廣泛使實驗的結構更加複雜化，雖有上述的優點仍需要更多的裝置來互相配合及應用。

先前的實驗對於二維十字型微管道的液滴生成、三維十字型微管道的流場分部、T型微管道的油滴生成及雙重包覆，都是以光學顯微鏡利用2D的方式來呈現實驗的結果，故本研究將三種管道進行結構的組合後，利用商用軟體將管道進行數值模擬，使整體的流場能利用不同的角度來進行觀察與探討，本研究藉由改變流速來探討生成的水滴及油滴的趨勢，並在改變後對雙重包覆的影響，將模擬結果與以往的實驗結果做比較。在確認整體流場與實驗相似後，對雙重包覆的基準流場作探討，並探討與實驗上的差異及在模擬中所遇到的問題。

As the great development on micro total analysis system(μ-TAS), micro-electromechanical system(MEMS) has a rapid growth in recent years. We take advantage of this technique made with less amount of test samples, smaller size of volume, and lower experimental cost to manufacture the micro-pipe droplet device. Nevertheless, extended application of that makes the experiment structure get more diversified. In spite of within the advantages mentioned above, we still need more configuration to build coordination and application. In the previous test, we have all presented by 2D optical microscopy; including, droplet generation of 2-D crossing microchannels literatures, flow field division of 3-D crossing microchannels literatures, and oil droplet in the upstream of the T-junction channel and yield double emulsion. In this case, we make these three channels combine into composition. By means of using commercial software to conduct the numerical simulation, so that the overall flow field can be observed and discussed via different angles. In this study, we compared numerical simulation with the previous experimental results, by using the trend of water droplets and oil droplets was investigated by changing the flow rate, and brought the effects to the yield double emulsion. After confirming the consequence of overall flow field is similar to the experiment, we can explore the flow field with double emulsion, as well as the experiment difference and the problem encountered on the simulation.

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