CFD MODEL COUPLED WITH PARTICLES FORCE ANALYSIS AND ITS APPLICATION IN ULTRAFILTRATION MEMBRANE FOULING

WANG Rui; YOU Hong; SHANG Wen-tao; SUN Fei-yun; YUE San-feng; SUN Jin-xu

doi:10.13205/j.hjgc.202107014

Volume 39 Issue 7

Jan. 2022

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WANG Rui, YOU Hong, SHANG Wen-tao, SUN Fei-yun, YUE San-feng, SUN Jin-xu. CFD MODEL COUPLED WITH PARTICLES FORCE ANALYSIS AND ITS APPLICATION IN ULTRAFILTRATION MEMBRANE FOULING[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(7): 116-121,150. doi: 10.13205/j.hjgc.202107014

Citation:

WANG Rui, YOU Hong, SHANG Wen-tao, SUN Fei-yun, YUE San-feng, SUN Jin-xu. CFD MODEL COUPLED WITH PARTICLES FORCE ANALYSIS AND ITS APPLICATION IN ULTRAFILTRATION MEMBRANE FOULING[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(7): 116-121,150. doi: 10.13205/j.hjgc.202107014

Citation:

WANG Rui, YOU Hong, SHANG Wen-tao, SUN Fei-yun, YUE San-feng, SUN Jin-xu. CFD MODEL COUPLED WITH PARTICLES FORCE ANALYSIS AND ITS APPLICATION IN ULTRAFILTRATION MEMBRANE FOULING[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(7): 116-121,150. doi: 10.13205/j.hjgc.202107014

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CFD MODEL COUPLED WITH PARTICLES FORCE ANALYSIS AND ITS APPLICATION IN ULTRAFILTRATION MEMBRANE FOULING

doi: 10.13205/j.hjgc.202107014

1. School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China;
2. School of Environment, Harbin Institute of Technology, Harbin 150000, China

Received Date: 2021-01-25
Available Online: 2022-01-18

Abstract

Abstract

Membrane fouling can be defined as a particle deposition process on the surface of membrane. In order to understand the particle migration and deposition process in the filter channel, a computational fluid dynamics(CFD) model coupled with particle force analysis was studied. By editing the user-defined function(UDF) of the force of the particles and combining with the discrete phase model(DPM) in CFD, the particle behaviors were simulated during ultrafiltration. The CFD simulation results were further verified by batch-scale experiments and the accuracy of CFD simulation of particle deposition was evidenced by in-situ Micro-PIV visualization.Resultsshowed that the particle deposition probability was positively related to the transmembrane pressure difference, and inversely related to the cross-flow velocity. The velocity field in the membrane cavity was recorded by the trajectory of the tracer particles. This CFD model visually and intuitively revealed the flow field of the membrane process and the movement of particles, and provided a scientific basis for understanding membrane fouling and optimizing membrane modules.
- ultrafiltration membrane fouling,
- force analysis of particle,
- particle movement and deposition,
- CFD,
- micro-PIV

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References(29)

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