水中微粒沉降分離實驗與分析

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姓名

沈靖翔(Jing-Xiang Shen) 查詢紙本館藏

畢業系所

機械工程學系

論文名稱

水中微粒沉降分離實驗與分析

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摘要(中)

本研究成功利用聲波使微粒進行沉降從而達到分離。首先利用模擬進
行調變波之動態分析，再針對不同微粒進行實驗規劃與設計，以確認各個參
數對實驗之影響。而不同密度或不同粒徑之微粒皆會產生不同之沉降速度，
因此需透過實驗取得調變波之參數進行分離實驗。最後依據單顆或多顆微
粒進行不同情況之分離實驗，並對其結果與數據進行分析與討論。而本實驗
所使用之聲波不具侵入性，且可操控之粒徑範圍廣，因此選擇聲波進行分離
實驗之開發。

摘要(英)

This study successfully uses sound waves to separate particles. In order to
confirm the feasibility of the method, we also use simulation to analyze the
dynamics of the modulated wave. The separation status is analyzed by different
parameters, such as active time and non-active time. Since different particles have
different sedimentation velocity, various parameters of the modulated wave are
obtained through experiments. These parameters will contribute to the success
rate of the separation experiment.

關鍵字(中)

★ 聲波
★ 微粒

關鍵字(英)

論文目次

摘要 I
ABSTRACT II
目錄 III
圖目錄 V
表目錄 VII
第一章緒論 1
1.1 前言 1
1.2 研究目的與動機 1
1.3 非接觸式微粒分離背景回顧 2
1.4 聲波鑷子分離介紹 5
第二章基礎理論 9
2.1 駐波理論 9
2.2 流體運動方程式 10
2.2.1 連續方程式 10
2.2.2 動量方程式 11
2.2.3 流體狀態方程式 11
2.3 線性波動方程式 12
2.4 聲輻射力 13
2.4.1 任意聲場中小球體之聲輻射力 14
第三章實驗架設與設計 15
3.1 實驗架構 15
3.2 聲阻抗匹配理論 16
3.3 聲流產生機制 18
3.4 材料參數 20
3.5 實驗模擬與設計 22
3.5.1 駐波場模擬分析 22
3.5.2 調變波模擬分析 26
3.5.3 模擬討論與實驗設計 28
第4章實驗結果與討論 34
4.1 實驗結果 34
4.1.1 單與單分離結果與討論 34
4.1.2 群與單分離結果與討論 42
4.1.3 群與群分離結果與討論 45
4.2 實驗討論彙整 48
第五章結論與未來展望 54
5.1 結論 54
5.2 未來展望 54
參考文獻 56

參考文獻

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指導教授

陳世叡(Shih-Jui Chen)

審核日期

2021-9-30

推文