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Original Articles

Dynamic Shape Factor of Nonspherical Aerosol Particles in the Diffusion Regime

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Pages 270-277 | Received 18 Jan 1988, Accepted 05 Jul 1988, Published online: 07 Jun 2007
 

Abstract

Diffusional losses of monodisperse polysterene spheres and doublets from laminar aerosol flows and stagnant aerosols in cylindrical tubes were measured. The losses of spheres were used to determine their diameter (range 69–120 nm) and the volume equivalent diameter of their doublets. The losses of the doublets were used to determine their dynamic shape factor which for randomly oriented doublets was established to be 1.127 ± 0.085 for Knudsen numbers between 1.1 and 2.0.

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