TURBULENT TRANSPORT IN MEMBRANE MODULES BY CFD SIMULATION IN 2 DIMENSIONS

A numerical hydrodynamic simulation of the flow held inside a membrane module has been formulated and implemented. The membrane surface is t reated as a porous wall. This simulation is modular in design and can support many optional features such as turbulent effects, pressure-rel ated boundary conditions, and flexible module geometry. The diffusion- convection equation was incorporated in a straightforward manner to mo del a membrane separation showing the solute concentration field under realistic prevailing hydrodynamic conditions. The numerical results f or one-component hydrodynamic simulations match existing but more cumb ersome analytical models quite well.