Dean Vortices with Wall Flux in a Curved Channel Membrane System : 3. Concentration Polarization in a Spiral Reverse Osmosis Slit

この論文にアクセスする

この論文をさがす

著者

抄録

Numerical solutions of the 3-dimensional convective diffusion equation are used to obtain a quantitative measure of concentration polarization for Dean vortex flow of an aqueous salt solution in a spiral reverse osmosis system. The velocity fields for total spanwise, radial and streamwise directions are incorporated into the convective-diffusion equation to obtain the concentration profiles. The concentration polarization for flow in spiral (with Dean vortices) and flat (without Dean vortices) membrane channels are calculated under similar flow conditions. The rate of concentration build-up in a spiral membrane channel with axial distance is significantly inhibited when Dean vortices are present. Dean vortex flow promotes rapid mixing and inhibits the growth of the solute concentration boundary layer, hence a module with Dean vortices is more productive at larger downstream distances than one without such instabilities.

収録刊行物

  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 31(5), 683-693, 1998-10 

    The Society of Chemical Engineers, Japan

参考文献:  28件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10002066173
  • 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
    4588672
  • 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  NDL  J-STAGE 
ページトップへ