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    Large-eddy simulation of flow about a rotating cylinder at large Reynolds number

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    Type
    Conference Paper
    Authors
    Pullin, D.
    Cheng, W.
    Samtaney, Ravi cc
    KAUST Department
    Fluid and Plasma Simulation Group (FPS)
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2018
    Permanent link to this record
    http://hdl.handle.net/10754/681593
    
    Metadata
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    Abstract
    Wall-resolved large-eddy simulations (LES) of flow over a rotating cylinder are described. The two important flow parameters are the Reynolds number ReD = U∞ D/ν and the rotation speed α = Ω D/(2 U∞). We discuss LES data sets obtained by varying α at various ReD with our main results at ReD = 6 × 104. Our emphasis centers on the lift-crisis phenomenon where, at fixed and large ReD, the lift coefficient CL decreases suddenly as α passes though a narrow, critical band. We show the variation of time/span-wise averaged pressure and skin-friction coefficients around the cylinder surface as α is increased. The LES is shown to capture the lift crisis at ReD = 6 × 104. Calculations of CL are compared with experimental measurements.
    Citation
    Pullin, D. I., Cheng, W., & Samtaney, R. (2018). Large-eddy simulation of flow about a rotating cylinder at large Reynolds number. Proceeding of THMT-18. Turbulence Heat and Mass Transfer 9 Proceedings of the Ninth International Symposium On Turbulence Heat and Mass Transfer. https://doi.org/10.1615/thmt-18.1110
    Publisher
    Begellhouse
    Conference/Event name
    9th International Symposium on Turbulence Heat and Mass Transfer, THMT 2018
    ISBN
    9781567004687
    DOI
    10.1615/THMT-18.1110
    Additional Links
    http://www.dl.begellhouse.com/references/1bb331655c289a0a,581052950cd6a1e7,01bb085509cb36bb.html
    ae974a485f413a2113503eed53cd6c53
    10.1615/THMT-18.1110
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program

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