Continuity waves in fully resolved simulations of settling particles

ORAL

Abstract

Fully resolved simulations of 500 to 2,000 particles settling in a fluid have been conducted with the Physalis method. A new approach to the reconstruction of pseudo-continuum fields is described and is used to examine the results with the purpose of identifying concentration waves. The velocity of concentration waves is successfully deduced from the simulations. A comparison of the results with continuity wave theory shows good agreement. Several new insights about the particle microstructure conditionally averaged on volume fraction and velocity are also described.

*This work is supported by NSF award CBET1335965.

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Authors

  • Daniel Willen

    • Johns Hopkins University

  • Adam Sierakowski

    • Department of Mechanical Engineering, Johns Hopkins University
    • Johns Hopkins University

  • Andrea Prosperetti

    • Department of Mechanical Engineering, John Hopkins University
    • University of Houston, University of Twente