Vol. 12, issue 06, article # 20

pdf Medvedev A. A., Trusova N. N., Chernyi S. G., Sharov A. V. Numerical study of aspiration of aerosol particles from a flux into an annular slit sampler. // Atmospheric and oceanic optics. 1999. V. 12. No. 06. P. 543-545.
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The efficiency of aspiration of aerosol into an annular slit inlet has been calculated by numerical solution of the three-dimensional Navier–Stokes equations. The aspiration efficiency is represented as a function of the following similarity criteria: the Stokes number, flow velocity ratio, and ratio of sampler characteristic dimensions. The results of these calculations can be used to estimate the aspiration errors and determine the optimal parameters of the sampler.