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頁籤選單縮合
題名 | The Effects of Temperature and Pressure on Viscous flow of Power Law Fluid in a Capillary Tube=溫度及壓力效應對冪次流體在毛細管中流動之影響 |
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作者姓名(中文) | 朱義旭; 黃芳正; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 19:1 1988.01[民77.01] |
頁次 | 頁9-15 |
分類號 | 460.02 |
關鍵詞 | 毛細管; 流動; 流體; 效應; 溫度; 冪次; 壓力; |
語文 | 英文(English) |
中文摘要 | 由於施加高壓使高點度流體通過毛細管時會產生大量黏滯熱。因此流體之黏度會產生顯著之改變。本文利用正規攝動法求解當點黏度是溫度及壓力函數時,流體流經毛細管之速度、溫度及壓力分布情況。結果發現,由於大量黏滯熱之產生造成之局部溫度上升,使得速度分布逐漸偏離進口時之全展流形態。對牛頓流體而言,此效應造成牛頓流體呈現非線性之行為。 |
英文摘要 | Due to the large pressure drop required to drive a fluid with high viscosity through a capillary tube, a large amount of viscous heat will be generated which will have significant effect on fluid viscosity. In this work, a regular perturbation method is used to find velocity, temperature as well as pressure distribution of fluid with a temperature and pressure dependent viscosity flowing in a capillary tube. It is found that due to local temperature rise caused by viscous heating, the velocity distributions gradually deviate from the fully developed profiles. For a Newtonian fluid, there will be remarkable non-linear flow behavior as a result of this viscous heating effect. |
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