English  |  正體中文  |  简体中文  |  Items with full text/Total items : 54367/62174 (87%)
Visitors : 13872386      Online Users : 78
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTHU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    National Tsing Hua University Institutional Repository > 原子科學院  > 工程與系統科學系 > 會議論文  >  Head loss and flow characteristics for turning flow driven by surface tension force inside open microchannel


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/47206


    Title: Head loss and flow characteristics for turning flow driven by surface tension force inside open microchannel
    Authors: Chen, Y.F.;Chen, M.H.;Yu, R.J.;Tseng, F.G.;Chieng, Ching-Chang
    教師: 錢景常
    Date: 2004
    Publisher: American Society of Mechanical Engineers
    Relation: Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004), Proceedings of the Second International Conference on Microchannels and Minichannels (ICMM2004), 2004, p 439-444
    Keywords: Heat losses
    Surface tension
    Interfaces
    Unsteady flow
    Viscosity
    Friction
    Pressure effects
    Computer simulation
    Abstract: Present study demonstrates the head loss and the flow characteristics as the open microchannel makes turns. The microchannels are of various aspect ratios of depth/width ranging from 0.5 to 2. and makes turns with different angles ranging from 60 to 120 degrees. The investigations are performed both by experiments and numerical simulations based on first principle equations. For the open channel system, the flow is mainly driven by surface tension under same pressure atmosphere. For liquid flow in open microchannel without turn, the liquid front velocity decreases but the interface area of liquid-gas increase as flow moves downstream. For turning flows, liquid front velocity is decreased firstly and then increased sharply at the turning point. Furthermore, the liquid front velocity can be increased for higher aspect ratio of channel height and width, and the effect of aspect ratio is significant up to aspect ratio between 1.0-1.5. Detailed flow characteristics as well as the head loss coefficient due to microchannel turning are discussed.
    URI: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=ASMECP002004041642000439000001&idtype=cvips&gifs=yes&ref=no
    http://www.asme.org/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/47206
    Appears in Collections:[工程與系統科學系] 會議論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML596View/Open


    在NTHUR中所有的資料項目都受到原著作權保護,僅提供學術研究及教育使用,敬請尊重著作權人之權益。若須利用於商業或營利,請先取得著作權人授權。
    若發現本網站收錄之內容有侵害著作權人權益之情事,請權利人通知本網站管理者(smluo@lib.nthu.edu.tw),管理者將立即採取移除該內容等補救措施。

    SFX Query

    與系統管理員聯絡

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback