Comparison of granular and open cell foam filter models by numerical simulation

Abstract

Abstract A comparison of granular and highly porous mesh filter models is based on the results of numerical simulation. We created models filters with an equal diameter of granules and cells. In order to avoid calculation errors associated with a random arrangement of cells, we averaged the results for five geometries. The values of the pressure drop obtained based on numerical simulation correlate well with the data obtained by the experimental Ergun equation. We calculated particle deposition efficiency and filter quality factor for models with equal porosity, and pressure drop value. Additionally, the filter quality factor for geometries with equal particle deposition efficiency was estimated. The calculation results show that it is advisable to compare the filter models by the value of the differential pressure.