Turbulence: Wall-Bounded Flows IV: Drag Reduction, Compliant Walls and Surface Roughness

Presentations

• A driving mechanism of near-wall turbulence subject to adverse pressure gradient

  ORAL

  Nov. 22, 2021, 1:10 PM – Nov. 22, 2021, 1:23 PM

  Presenters

  • Yuxin Jiao

  Authors

  • Yuxin Jiao

  • Yongyun Hwang

    • Imperial College London
    • Department of Aeronautics, Imperial College London, South Kensington, London SW7 2AZ

  • Sergei Chernyshenko

    • Imperial College London

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• Wall-bounded turbulent flow and equilibrium states in plane Couette flow under spanwise wall oscillation

  ORAL

  Nov. 22, 2021, 1:23 PM – Nov. 22, 2021, 1:36 PM

  Presenters

  • Yacine Bengana

    • Department of Aeronautics, Imperial College London, South Kensington, London SW7 2AZ

  Authors

  • Yacine Bengana

    • Department of Aeronautics, Imperial College London, South Kensington, London SW7 2AZ

  • Qiang Yang

    • State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Centre, Mianyang, 621000, PR China
    • State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Centre, Mianyang 621000, PR China

  • Yongyun Hwang

    • Imperial College London
    • Department of Aeronautics, Imperial College London, South Kensington, London SW7 2AZ

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• Visualization of instantaneous and filtered turbulent pipe flow data with and without drag reduction by spanwise wall oscillations at moderately high Reynolds number

  ORAL

  Nov. 22, 2021, 1:36 PM – Nov. 22, 2021, 1:49 PM

  Presenters

  • Daniel J Coxe

    • Arizona State University

  Authors

  • Daniel J Coxe

    • Arizona State University

  • Ronald J Adrian

    • Arizona State University

  • Yulia T Peet

    • Arizona State University

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• Direct Numerical Simulation of a Fluid-Structure Interaction in a Turbulent Channel over a Finite-thickness Hyper-elastic Wall at Re_τ=180

  ORAL

  Nov. 22, 2021, 1:49 PM – Nov. 22, 2021, 2:02 PM

  Presenters

  • Yiqin Xu

  Authors

  • Yiqin Xu

  • Yulia T Peet

    • Arizona State University

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• Wave-turbulence interactions in flow over compliant wall

  ORAL

  Nov. 22, 2021, 2:02 PM – Nov. 22, 2021, 2:15 PM

  Presenters

  • Amir Esteghamatian

    • Johns Hopkins University

  Authors

  • Amir Esteghamatian

    • Johns Hopkins University

  • Joseph Katz

    • Johns Hopkins University

  • Tamer A Zaki

    • Johns Hopkins University

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• Energy balance in lubricated drag-reduced turbulent channel flow

  ORAL

  Nov. 22, 2021, 2:15 PM – Nov. 22, 2021, 2:28 PM

  Publication: Roccon, A., Zonta, F., & Soldati, A. (2021). Energy balance in lubricated drag-reduced turbulent channel flow. Journal of Fluid Mechanics, 911.

  Presenters

  • Alessio Roccon

    • Vienna Univ of Technology

  Authors

  • Alessio Roccon

    • Vienna Univ of Technology

  • Francesco Zonta

    • Vienna Univ of Technology
    • TU Wien

  • Alfredo Soldati

    • Vienna Univ of Technology / University of Udine
    • Vienna Univ of Technology
    • TU Wien / University of Udine

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• Direct Numerical Simulations of Bristled Shark Denticles in Turbulent Channel Flows

  ORAL

  Nov. 22, 2021, 2:28 PM – Nov. 22, 2021, 2:41 PM

  Presenters

  • Devika J Patel

    • University of Mississippi

  Authors

  • Devika J Patel

    • University of Mississippi

  • Wen Wu

    • University of Mississippi

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• Onsager approach to wall bounded turbulence

  ORAL

  Nov. 22, 2021, 2:41 PM – Nov. 22, 2021, 2:54 PM

  Publication: Eyink, Gregory, Kumar, Samvit and Quan, Hao, "The Onsager Theory of
  Wall-Bounded Turbulence and Taylor's Momentum Anomaly", Philosophical Transactions of the Royal Society A, 2021 (Accepted)

  Presenters

  • Samvit Kumar

    • Johns Hopkins University

  Authors

  • Samvit Kumar

    • Johns Hopkins University

  • Hao Quan

    • Johns Hopkins University

  • Gregory L Eyink

    • Johns Hopkins University

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• Direct Numerical Simulations of rough wall-bounded turbulence over unsteady channel flow

  ORAL

  Nov. 22, 2021, 2:54 PM – Nov. 22, 2021, 3:07 PM

  Presenters

  • Pratik Mitra

    • University of Texas at San Antonio

  Authors

  • Pratik Mitra

    • University of Texas at San Antonio

  • Kiran Bhaganagar

    • University of Texas at San Antonio

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• DNS of turbulent plane-Couette flow with surface roughness

  ORAL

  Nov. 22, 2021, 3:07 PM – Nov. 22, 2021, 3:20 PM

  Publication: S. K. Javanappa and V. D. Narasimhamurthy. Turbulent plane-Couette flow with a roughened wall (submitted to PRFluids)

  Presenters

  • Shashi Kumar Javanappa

    • Indian Institute of Technology Madras

  Authors

  • Shashi Kumar Javanappa

    • Indian Institute of Technology Madras

  • Vagesh D. Narasimhamurthy

    • Indian Institute of Technology Madras

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