Abstract
Results of the experimental study of gravitational sedimentation of a cooled spherical particle in a viscous fluid within the Reynolds number range Re = 0.01–1.32 are presented. It is shown that the stationary sedimentation rate of a cooled particle considerably decreases (up to 30%). Empirical dependences for the sedimentation rate and hydrodynamic drag coefficient are obtained for a particle in the range of the difference between fluid (glycerin or silicon oil) and particle temperatures ΔT = 0–210 K.
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This work was supported by the Ministry of Education and Science of the Russian Federation within the framework of state contract no. 0721-2020-0036.
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Translated by A. Nikol’skii
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Arkhipov, V.A., Basalaev, S.A., Perfil’eva, K.G. et al. An Experimental Study of the Hydrodynamic Drag Coefficient of a Cooled Hard Sphere at Small Reynolds Numbers. Tech. Phys. Lett. 47, 317–320 (2021). https://doi.org/10.1134/S1063785021040027
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DOI: https://doi.org/10.1134/S1063785021040027