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Boundary Layers: Surface Effects, Features, Roughness

ORAL · Z24 · ID: 3581588

Presentations

  • Dynamic Response of Flexible Hair-Like Structures to Turbulence

    ORAL

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    Presenters

    • Pratik Suhas Deshpande

      Embry-Riddle Aeronautical University, Daytona Beach

    Authors

    • Pratik Suhas Deshpande

      Embry-Riddle Aeronautical University, Daytona Beach

    • Greeshma Daniel

      Embry-Riddle Aeronautical University, Daytona Beach, Embry-Riddle Aeronautical University

    • Graham Holt

      Embry-Riddle Aeronautical University, Daytona Beach

    • Ebenezer P Gnanamanickam

      Embry-Riddle Aeronautical University, Daytona Beach, Daytona Beach campus

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  • Compound impacts of PV array configurations on boundary layer flow generated over e-type roughness elements

    ORAL

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    Presenters

    • Yamilet R Rendon-Hernandez

      Portland State University

    Authors

    • Yamilet R Rendon-Hernandez

      Portland State University

    • Emma Rocio R Compton

      Portland State University

    • Katie N Taylor

      Portland State University

    • Ondrej Fercak

      Portland State University

    • Sarah E Smith

      Portland State University

    • Zein Ahmad Sadek

      Portland State University

    • Abdelhalim Abdeldayem

      Katholieke University Leuven

    • Marc Calaf

      University of Utah

    • Raúl Bayoán B Cal

      Portland State University

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  • Direct Numerical Simulation of High-Speed Turbulent Flows over Complex Rough Surfaces

    ORAL

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    Publication: Modesti D, Sathyanarayana S, Salvadore F, Bernardini M. Direct numerical simulation of supersonic turbulent flows over rough surfaces. Journal of Fluid Mechanics. 2022;942:A44. doi:10.1017/jfm.2022.393<br>

    Presenters

    • Alessandro Ceci

      Gran Sasso Science Institute

    Authors

    • Alessandro Ceci

      Gran Sasso Science Institute

    • Davide Modesti

      Gran Sasso Science Institute

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  • On the Relationship between Manning’s Roughness Coefficient and Relative Roughness

    ORAL

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    Publication: References<br>1. Nikuradse, J. (1933). Laws of Flow in Rough Pipes. NACA Technical Memorandum 1292.<br>2. Darcy, H. (1857). Les fontaines publiques de la ville de Dijon. Dalmont, Paris.<br>3. Bazin, H. (1865). Expériences nouvelles sur l'écoulement de l'eau. Imprimerie Nationale.<br>4. Manning, R. (1891). On the flow of water in open channels and pipes. Transactions of the Institution of Civil Engineers of Ireland.<br>5. Jimenez, J. (2004). Turbulent Flows Over Rough Walls. Annu. Rev. Fluid Mech., 36, 173–196.<br>6. Moody, L.F. (1944). Friction Factors for Pipe Flow. Transactions of the ASME, 66(8), 671–684.<br>7. Colebrook, C.F. (1939). Turbulent flow in pipes, with particular reference to the transition region between smooth and rough pipe laws. Journal of the Institution of Civil Engineers, 11(4), 133–156.<br>8. Townsend, A.A. (1976). The Structure of Turbulent Shear Flow. 2nd Edition. Cambridge University Press.<br>9. Clauser, F.H. (1954). Turbulent boundary layers in adverse pressure gradients. Journal of the Aeronautical Sciences, 21(2), 91–108.<br>10. Schultz, M.P. & Flack, K.A. (2007). The rough-wall turbulent boundary layer from the hydraulically smooth to the fully rough regime. Journal of Fluid Mechanics, 580, 381–405.<br>11. Chan, L., MacDonald, M., Chung, D., Hutchins, N., & Ooi, A. (2015). Direct numerical simulation of a rough-wall turbulent channel flow. Journal of Fluid Mechanics, 771, 743–777.<br>12. Zhao, J., & Hu, H. (2021). A review on turbulent flow over rough surfaces: Fundamentals and theories. Journal of Hydrodynamics, 33(1), 1–17. https://doi.org/10.1007/s42241-021-0006-5

    Presenters

    • Faisal A Alsultan

      Colorado State University

    Authors

    • Faisal A Alsultan

      Colorado State University

    • Karan Venayagamoorthy

      Colorado State University, Missouri University of Science and Technology, Colorado State University , Missouri University of Science and Technology

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