Abstract

The hypothesis of the flushing fluid that is evenly distributed and flowing on the surface of the wet filtering layer fiber was first introduced in the paper, on which the concept of equivalent diameter of the composite trap was given to build the theoretical model of filtration resistance of wet fiber layer for aerosol particles, therefore the theoretical formula of wet filtration resistance has been derived, making possible the theoretical research on the filtration and purification resistance of wet fiber layer for dust particles. Based on the theoretical analysis, a semi-theoretical and semi-empirical formula that can be applied to the practical use has been eventually obtained by means of the necessary dimensionless correction of the theoretical results through simulation experiments, the formula and the methods of research questions are of guiding significance and conductive to the filtration and purification of wet fiber layer for aerosol particles.

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