Prandtl model for concentration polarization and osmotic counter-effects in a 2-D membrane channel

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• 作者：B. Bernales ^{bernales@L3M.univ-mrs.fr} ; P. Haldenwang ^{pierre.haldenwang@univ-amu.fr} ; P. Guichardon ; ^{pierrette.guichardon@centrale-marseille.fr} ; N. Ibaseta ^{nelson.ibaseta@centrale-marseille.fr}
• 关键词：Numerical modeling ; Concentration polarization ; Osmotic pressure ; Starling-Darcy law ; Prandtl approximation
• 刊名：Desalination
• 出版年：2017
• 出版时间：17 February 2017
• 年：2017
• 卷：404
• 期：Complete
• 页码：341-359
• 全文大小：2238 K
• 卷排序：404

文摘

A 2D-numerical model based on the solute conservation equation and the steady Navier-Stokes equations has been developed. The local permeate flux and the solute concentration polarization are predicted with an excellent accuracy. Our model predicts a faster decline in permeation due to a rapid development of the polarization boundary layer. A good agreement was obtained between our numerical results and varied reverse osmosis experimental results.