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Abstract <p>We numerically simulate the diffusion deposition of submicron aerosol particles from a Stokes flow in model fine-fiber filters with account for their inertia. The calculations are performed using the Langevin dynamics method based on a flow field in a cell model with account for gas slip effect on the fibers. The dependences of fiber capture efficiency for finite-size particles on particle radius are calculated for different values of the Péclet and Stokes numbers. It is revealed that the position of the minimum in the dependence of capture efficiency on particle radius is not affected by the simultaneous consideration of diffusion and inertia.</p>

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Effect of Inertia on Diffusion Deposition of Particles in Fibrous Filters

  • 期刊论文

  • 发表日期：

    2025年12月8日

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  • V. A. Kirsh

摘要

Abstract

We numerically simulate the diffusion deposition of submicron aerosol particles from a Stokes flow in model fine-fiber filters with account for their inertia. The calculations are performed using the Langevin dynamics method based on a flow field in a cell model with account for gas slip effect on the fibers. The dependences of fiber capture efficiency for finite-size particles on particle radius are calculated for different values of the Péclet and Stokes numbers. It is revealed that the position of the minimum in the dependence of capture efficiency on particle radius is not affected by the simultaneous consideration of diffusion and inertia.