Abstract
Aerosol aspiration has been calculated by Levin for a sink simulating a fairly narrow slot or a thin tube [1].
In the present study we determine the aspiration coefficient for aerosol particles for a two-dimensional nozzle of finite width. For strongly inertial aerosol particles, when k≫k*, where k is the Stokes number and k* is its critical value, the approximate equations proposed in [2] are applicable.
For k≤k*, when there is no inertial deposition of aerosol particles on the nozzle wall, we use the small parameter method. The aspiration coefficient is calculated with accuracy to k2. Some numerical data and a comparison with sink flow are presented.
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References
L. M. Levin, Studies on the Physics of Coarsely Dispersed Aerosols [in Russian], Izd-vo AN SSSR, 1961.
I. M. Yur'ev, “The theory of inertial deposition of gas or liquid particles”, Dokl. AN SSSR, vol. 170, no. 5, 1966.
H. Lamb, Hydrodynamics [Russian translation], Gostekhizdat, chapter 4, §66, 1947.
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Yur'ev, I.M. Aerosol aspiration through a slot of finite width. Fluid Dyn 2, 51–55 (1967). https://doi.org/10.1007/BF01019536
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DOI: https://doi.org/10.1007/BF01019536