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Direct simulation of initial filtration phenomena within highly porous media

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Abstract

Initial filtration phenomena within highly porous filter media—ceramic foam filters (CFF) —were simulated by numerically solving the Navier-Stokes equations and the general transport equation for suspended particles. In this approach, a “piece” of the highly porous filter was modeled directly by constructing a calculation domain such that the main average geometrical properties of the real filters were embodied therein. The governing equations were then solved by imposing appropriate boundary conditions on the solid surfaces of the filter webs. The influences of Reynolds, Peclet, and Gravitational numbers, as well as filter porosity, on initial filtration efficiencies were investigated in this simulation. Predicted results were spotchecked against data from industrial filtration trials conducted by the authors for aluminum melts and found to be in good agreement.

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Authors and Affiliations

  1. McGill Metals Processing Centre, Department of Mining and Metallurgical Engineering, McGill University, H3A 2A7, Montreal, PQ, Canada

    Chenguo Tian (Ph.D Candidatte) & R. I. L. Guthrie (Director and Professor)

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  1. Chenguo Tian
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  2. R. I. L. Guthrie
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Tian, C., Guthrie, R.I.L. Direct simulation of initial filtration phenomena within highly porous media. Metall Mater Trans B 26, 537–546 (1995). https://doi.org/10.1007/BF02653871

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