| 題名: | Numerical Studies of Curved-walled Micro Nozzle/Diffuser |
| 作者: | Chen, Yu-tang;Hsu, Chin-chun;Chang, Ming-cheng;Kang, Shung-wen |
| 貢獻者: | 淡江大學機械與機電工程學系;淡江大學水資源及環境工程學系 |
| 關鍵詞: | Nozzle;Diffuser;Pressure loss coefficient;Reynolds number |
| 日期: | 2006-01-18 |
| 上傳時間: | 2010-04-15 10:31:30 (UTC+8) |
| 出版者: | Institute of Electrical and Electronics Engineers (IEEE) |
| 摘要: | In this study, commercially available software CFD was adopted for analyzing the performance of straight-walled and curved-walled micro nozzle/diffuser. Such nozzle/diffuser was used in valve-less micro-pumps. This model tested different types of nozzle/diffuser and the results showed that the pressure loss coefficient for nozzle/diffuser decreases with the increase of Reynolds number. At the same Reynolds number, the pressure loss coefficient for nozzle is higher than that of the diffuser. At a given volumetric flow rate, the pressure loss coefficient and ratio of pressure loss coefficient for curved-walled nozzle/diffuser are slightly higher than that of the straight-walled nozzle/diffuser. In this study, the numerical data was found good agreement with previous analytic solution and experimental results. |
| 關聯: | Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on, pp.841-845 |
| DOI: | 10.1109/NEMS.2006.334908 |
| 顯示於類別: | [水資源及環境工程學系暨研究所] 會議論文
[機械與機電工程學系暨研究所] 會議論文
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