Abstract
In this work, we studied the influence of the internal features of an open cell foam filter structure on the efficiency of particle deposition. Constructing of the open cell foam filter models is based on the Distinct Element Method, which allows creating geometry with a random arrangement of pores in space. Calculations of the flow field and particle trajectories were performed using the ANSYS Fluent software package (v. 19.0). We considered three models with the same pore cell diameter dc = 4 mm and different porosity: e = 0.6, e = 0.7 and e = 0.8 . We investigated filter with porosity e = 0,6 and cell diameters dc = 6 mm, dc = 5 mm, dc = 4 mm, created by layers. Conducted numerical studies show that the filter model with multi-layer geometry provides the highest particle deposition efficiency for small non-inertial particles.
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