Open AccessInvestigation of the effect of porosity on the particle deposition efficiency in the model of an open cell foam filter
Author(s) -
O. V. Soloveva,
R. R. Khusainov,
Е. Г. Шешуков,
R. R. Yafizov
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/618/1/012094
Subject(s) - porosity , pressure drop , materials science , porous medium , deposition (geology) , work (physics) , mechanics , particle (ecology) , particle size , particle deposition , composite material , filter (signal processing) , filtration (mathematics) , inverse , thermodynamics , chemical engineering , mathematics , geometry , geology , physics , paleontology , oceanography , statistics , range (aeronautics) , sediment , computer science , engineering , computer vision
In this work, we performed experimental and numerical simulation of gas flow in the model of the open cell foam filter. We investigated the relationship between the porosity of the medium ɛ , and the parameter Po characterizing the number of pores per inch. We obtain a porous medium from the inverse matrix of the computational model made on a 3D printer. The calculation results of the pressure drop depending on the average filtration rate correlate well with the experimental data. Particle trajectories make it possible to determine the particle deposition efficiency in a porous layer for three values of the porosity of the medium ɛ = 0.6, ɛ = 0.7 and ɛ = 0.8 . The deposition efficiency in the case of porosity ɛ = 0.8 correlate well with the data obtained by the semi-empirical formula of the authors of [1], however, for the other two values of the porous medium, the efficiency curves differ significantly, so the dependence was obtained for a material with high porosity. We define the filter quality parameter by the ratio of the particle deposition efficiency to the pressure drop value in the porous layer.