首页|The dependence of the drag force of a moving aerosol particle on its nature of molecule-surface interaction
The dependence of the drag force of a moving aerosol particle on its nature of molecule-surface interaction
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NSTL
Elsevier
The dependence of the drag force on the nature of molecule-surface interaction is studied in the case of a low-speed flow of rarefied gas around a spherical particle. Expressions for the drag force and thermal polarization are obtained for a near-free molecule regime and an arbitrary scattering kernel. We used the model kinetic equation with a third-order collision integral obtained from the requirement that the moments of the Boltzmann and approximating collision integrals be equal. Numerical calculations using established scattering kernel models are performed. The numerical values of the accommodation parameters for all the used models are obtained from a comparison of the theoretical results with Millikan's data regarding watch oil drops in air.
NSTL
Elsevier
