000894912 001__ 894912
000894912 005__ 20230310131404.0
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000894912 037__ $$aFZJ-2021-03474
000894912 1001_ $$0P:(DE-Juel1)173831$$aPark, Gunwoo$$b0$$eCorresponding author$$ufzj
000894912 1112_ $$aThe 25th International Congress of Theoretical and Applied Mechanics$$cMilano (Virtual)$$d2021-08-22 - 2021-08-27$$gICTAM2020+1$$wItaly
000894912 245__ $$aModeling concentration polarization and fouling layers in cross-flow ultrafiltration
000894912 260__ $$c2021
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000894912 520__ $$aWe present a boundary layer approximation (BLA) method for calculating the concentration-polarization (CP) layer and dispersion flow in crossflow ultrafiltration with a cylindrical membrane [1]. Results are discussed for various feed dispersions of colloidal particles, namely hard spheres, charge-stabilized particles [2], solvent-permeable non-ionic microgels [3, 4], and deswelling ionic microgels [5]. State-of-the-art methods are used for the gradient diffusion coefficient and viscosity entering the calculation of filtration profiles [3, 5]. We show that the BLA profiles are in quantitative agreement with predictions by a finite-element method [1]. The BLA results are compared with predictions by a similarity solution [4]. The BLA method is extended to conditions where a filter cake is formed at the membrane, with permeate flux results presented for a hard-sphere system [6].
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000894912 7001_ $$0P:(DE-Juel1)130858$$aNaegele, Gerhard$$b1$$ufzj
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000894912 9141_ $$y2021
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