標題: Novel no-moving-part valves for microfluidic devices
作者: Yang, Kai-Shing
Chen, Ing-Youn
Wang, Chi-Chuan
Shyu, Jin-Cherng
機械工程學系
Department of Mechanical Engineering
公開日期: 1-十月-2010
摘要: This study characterizes and analyzes the performances of micro diffusers/nozzles with five types of enhancement structures and one of conventional micro nozzle/diffuser valve. The pressure drops across the designed micro nozzles/diffusers are found to be increased considerably when the obstacle and fin structure are added. Further, the micro nozzle/diffuser having added circular area reveals the lowest pressure drop, owing to the hydraulic diameter is increased by circular area and lower interface friction. The maximum improvement of the loss coefficient ratio is about 16% for an added 3-fin structure operated at a Reynolds number around 70. Upon this situation, the static rectification efficiency improves 4.43 times than the conventional nozzle/diffuser. Experimental results indicate the performance peaks at a Reynolds number around 70, and an appreciable decline is encountered when the Reynolds number is reduced. It is due to the efficiency ratio of conventional micro nozzle/diffuser significant increases with the Reynolds number.
URI: http://dx.doi.org/10.1007/s00542-010-1069-x
http://hdl.handle.net/11536/32156
ISSN: 0946-7076
DOI: 10.1007/s00542-010-1069-x
期刊: MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
Volume: 16
Issue: 10
起始頁: 1691
結束頁: 1697
顯示於類別:期刊論文


文件中的檔案:

  1. 000281734000003.pdf

若為 zip 檔案,請下載檔案解壓縮後,用瀏覽器開啟資料夾中的 index.html 瀏覽全文。