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Rotating-drum experiments for particle-laden flows: a new view

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Abstract.

Shear in the annular space between drums is a well-known model for particle-laden flows. When this technique was introduced by Bagnold, it was assumed that the shear rate and particle concentration were uniform within the annular space. It is now known that this is not generally the case, in part because the distribution of particles in the annulus is influenced by hydrodynamic lift, which is discussed in the paper. The shear stress attributable to solids is also found to be influenced by different boundary conditions, and all these factors affect the usefulness of drum experiments for predicting other flow configurations.

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Authors and Affiliations

  1. Department of Civil Engineering, Queen’s University at Kingston, Ontario, Canada, K7L 3N6

    Kenneth C. Wilson

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  1. Kenneth C. Wilson
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Correspondence to Kenneth C. Wilson.

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The author is happy to have the opportunity to thank M.Sc student Yan Su and summer students Susan Pfister, Anna-Marie Psaila and Alice Blair for their hard work in the experimental program that led to this paper. Acknowledgement is also due to the National Science and Engineering Research Council of Canada for financial support.

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Wilson, K. Rotating-drum experiments for particle-laden flows: a new view. GM 6, 97–101 (2004). https://doi.org/10.1007/s10035-004-0163-0

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  • DOI: https://doi.org/10.1007/s10035-004-0163-0

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