研究生: |
黃柏毅 |
---|---|
論文名稱: |
浮力於微垂直管中推動氣泡之流場研究 |
指導教授: | 李雄略 |
口試委員: | |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 動力機械工程學系 Department of Power Mechanical Engineering |
論文出版年: | 2006 |
畢業學年度: | 94 |
語文別: | 中文 |
論文頁數: | 46 |
中文關鍵詞: | 氣泡 |
相關次數: | 點閱:3 下載:0 |
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本文中提出了一個簡單的壓力落差修正方法,可以有效解決微小氣泡在自由液面兩側所存在的巨大壓力落差問題,使壓力落差的資料可以有效的在氣體跟液體間傳遞,而且由文中可以得知,不論網格的粗細,準確性也相當高,如此一來可以節省許多的計算時間。
在文中提到,表面張力對壓力場及流場的變化十分巨大,只要自由液面上曲率有了非常細微的改變,就會造成整個流場及壓力場的變動。因此,多數學者在模擬時將微小氣泡簡化為正圓,其實是不恰當的。將來在研究微觀下的氣泡時,應當準確的計算其自由液面曲率的變化,以求得更精確的流場。
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