Air filter simulation by Geodict

Abstract

We discussed the relationship of filter efficiency and pressure drop with the porosity, fiber diameter and filter thickness by Geodict. We found that filter efficiency will increase when filter porosity and fiber diameter decreasing or filter thickness increasing. The pressure drop has a linear relationship with filter thickness and a nonlinear relationship with filter porosity and fiber diameter. We also compared the simulation results with the real test results by TSI 3160. Although there are some differences, we think that Geodict can be used to predict filter efficiency and pressure drop.