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| Experiment and Computational Fluid Dynamics Simulation Study of Pressure Pulse Enhanced Filtration |
| Received:March 12, 2023 |
| DOI：10.11980/j.issn.0254-508X.2023.09.015 |
| Key Words:membrane filtration CFD Darcy’s law |
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| Abstract:In order to study the filtration flow field of tubular ceramic membrane filter， and the mechanism of pressure pulse enhanced filtration， the method of combining Computational Fluid Dynamics （CFD） simulation and experiment was adopted. First， the filtration performance of porous media in the filter was analyzed according to Darcy’s law， then the difference of results between the experiment and simulation under different working conditions was analyzed， and finally the effect and mechanism of pressure pulse enhanced filtration were analyzed. The results showed that the parameters of some working conditions were similar to the experimental results， but there was a large difference of paraments under some working conditions， but the overall law display pattern was the same as the experimental results. As the rotation increased the radial velocity of the fluid， the filtration flux increased. With the increase of rotor speed， the filtration flow of porous media increased to varying degrees. Compared with the method in which the tailwater value was closed， the filtration method in which the tailwater value was kept open to a certain extent was more conductive to increasing the filtration flux. |
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