0000000000540867

AUTHOR

Imen El Mokhtar

showing 2 related works from this author

Numerical simulations supporting process models of chemical engineering: applications for membrane systems

2019

This work presents computational fluid dynamics simulations aimed at characterizing flow and mass/heat transport mechanisms in spacer-filled channels for membrane processes, with particular reference to (reverse) electrodyalisis and membrane distillation.

Settore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciSettore ING-IND/19 - Impianti NucleariCFD mass transfer heat transfer membrane process membrane deformation
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CFD prediction of flow, heat and mass transfer in woven spacer-filled channels for membrane processes

2021

Abstract Flow and heat or mass transfer in channels provided with woven spacers made up of mutually orthogonal filaments were studied by Computational Fluid Dynamics. The problem addressed was the combined effect of the parameters that characterize the process: pitch to height ratio P/H (2, 3 and 4), flow attack angle θ (0, 7, 15, 20, 30, 40 and 45°) and Reynolds number Re (from ~1 to ~4000). The Prandtl number was 4.33, representative of water at ~40°C, while the Schmidt number was 600, representative of NaCl solutions. Simulations were performed by the finite volume code Ansys CFX™ 18.1 using very fine grids of ~6 to ~14 million volumes. For Re > ~400, the SST turbulence model was used to…

Settore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciMaterials science020209 energyPrandtl number02 engineering and technologyComputational fluid dynamicsSherwood numbersymbols.namesakeTemperature polarizationMass transfer0202 electrical engineering electronic engineering information engineeringPressure dropConcentration polarizationWoven spacerSettore ING-IND/19 - Impianti NucleariFluid Flow and Transfer ProcessesTurbulenceMechanical EngineeringSchmidt numberReynolds numberMechanics021001 nanoscience & nanotechnologyCondensed Matter PhysicsNusselt numberSST turbulence modelHeat transfersymbols0210 nano-technology
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