Mixing Characteristics of Newtonian Fluid by a Multi-Holed Static Mixer

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The mixing characteristics of a multi-holed static mixer have been studied for Newtonian fluid. A multi-holed static mixer composed of five pairs of 4- and 5-hole elements. The size of straight part of the hole, <I>a</I>, was changed in two steps of 2 mm and 5 mm and its inlet and outlet size, <I>d</I>, was also changed in two steps of 4 or 6 mm in the cases of <I>a</I> = 2 mm. The fluid viscosity and flow rate were also changed as parameters. Flow visualization experiments in a test pipe with 18 mm diameter were performed in order to observe the occupation ratio of dyed fluid, which is injected from the nozzle with 4 mm diameter mounted in the upstream of the static mixer. From the results, it is found that the Reynolds number based on the mean velocity in the 4 hole element and the hole size, <I>Re</I><SUB>a</SUB>, multiplied by a delivery ratio of the hole, <I>d</I>/<I>a</I>, well correlates the mixing and pressure loss characteristics. This is because there exist two mixing processes in the present static mixing system. One is the mixing process in a small hole by accelerated flow and the other is a delivery effect between holes.

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  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 39(8), 807-813, 2006-08-01 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10018206087
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    8018030
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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