Abstract
The micro-scale model of fibrous media was simulated to obtain viscous resistance in clean state, which was provided to the CFD porous media. A macro-scale model for predicting the pressure drop during dust loading was established based on the Euler-Lagrangian method by implementing the UDF in ANSYS-Fluent. The trapping mechanism programs were developed to realize different distribution forms of particles in the porous media. The macro-empirical model was used to calibrate the macro-scale model under different SVFs. The 592*592*292-4 V–F9 filter was simplified to CFD porous media and the numerical simulation was carried out during dust loading. The results show that the pressure drop shows different growth trends under different trapping mechanism programs. Very good agreement was found between the experimental and simulated pressure drop during dust loading. Thus, the macro-scale model broadens the way of studying the pressure drop of fibrous media in depth filtration.
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