Inertial Deposition of Submicron Aerosols in Model Fibrous Filters Composed of Ultrafine Fibers

The influence of the inertia of submicron particles on their deposition from a Stokes flow in model fine-fiber filters is considered at low Reynolds numbers. The fiber collection efficiencies are calculated by the limiting trajectory method for a cell model of the filter and for a row of parallel fibers oriented perpendicularly to the direction of the gas flow for the ranges of interception parameter R = 0.01-1, Stokes number Stk = 0-20, and Knudsen number Kn = 0-1. The simulation results are consistent with the experimental data.