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Dynamic shape and wall correction factors of cylindrical particles falling vertically in a Newtonian liquid

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Abstract

Results of numerical calculations of dynamic shape and wall correction factors for the flow of a Newtonian fluid over a vertically oriented cylindrical particle in a cylindrical tube are reported. Mathematical model of the flow was solved using the finite element method by means of the COMSOL Multiphysics software. Dependences of the shape factor on the cylinder aspect ratio and of the wall correction factor, F W , on the ratio of the cylindrical particle diameter to the tube diameter, and on the aspect ratio were obtained. Numerical dependences were approximated by simple relationships suitable for dynamic shape and wall correction factors prediction.

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Authors and Affiliations

  1. Institute of Environmental and Chemical Engineering, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic

    Jaroslav Strnadel, Bedřich Šiška & Ivan Machač

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  1. Jaroslav Strnadel
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  2. Bedřich Šiška
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  3. Ivan Machač
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Correspondence to Ivan Machač.

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Strnadel, J., Šiška, B. & Machač, I. Dynamic shape and wall correction factors of cylindrical particles falling vertically in a Newtonian liquid. Chem. Pap. 67, 1245–1249 (2013). https://doi.org/10.2478/s11696-012-0285-5

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  • DOI: https://doi.org/10.2478/s11696-012-0285-5

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