Computational study of desalination by reverse osmosis — Three-dimensional analyses

摘要: Abstract A computational study has been conducted to examine three-dimensional steady multicomponent fluid flows in the reverse osmosis membrane module. The module contains a net of spacers. SST k - ω turbulence model is employed simulate flow and concentration fields at Re  = 400 800, while laminar characterize  = 100. Spacer grids with 30°, 45° 60° are considered as three different geometries. treated functional surface where water flux, local pressure coupled. nature polarization each determined. Characteristics potential fouling buildup determined from wall shear stress distribution. Correlations between regions distribution presented. coefficient performance for all rates considered. It illustrated that modules perform better higher rates. containing spacers 30° arrangement shown be most efficient This proves configuration an important optimization parameter design modules.