Journal of Hydrodynamics

, Volume 18, Issue 1, pp 450–453 | Cite as

Experimental measurements of turbulent boundary layer flow over a square-edged rib

  • Feng Ke
  • Ying-zheng Liu
  • Chun-yu Jin
  • Wei-zhe Wang
Session B7


Statistical turbulence properties of turbulent flow over a two-dimensional rib which was flush mounted on a wind tunnel wall was extensively surveyed. Velocity fluctuations in the turbulent separated and reattaching flow and wall-pressure fluctuations on the rib and its downstream surface were obtained by using a split-fiber hotwire anemometry and a 32-channel microphone array, respectively. Distribution of the wall static pressure was acquired by using a Scanivalve system. Statistical quantities of the turbulent separated and reattaching flow were determined in terms of wall static pressure distribution, profiles of the streamwise velocity and its fluctuations, wall pressure fluctuation coefficient, and wall-pressure spectra. Characteristics of the shedding large-scale vortical structures buried in the turbulent flow were disclosed.

Key words

turbulent flow surface-mounted rib wall pressure fluctuations large-scale vortical structure 


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  1. [1]
    Counihan J., Hunt J.C.R., Jackson P.S., Wakes behind two-dimensional surface obstacles in turbulent boundary layers[J]. J. Fluid Mech., 1974, 64: 529–563.CrossRefGoogle Scholar
  2. [2]
    Castro I.P., Relaxing wakes behind surface-mounted obstacles in rough wall boundary layers[J]. J. Fluid Mech., 1979, 93: 631–659.CrossRefGoogle Scholar
  3. [3]
    Acharya S., Dutta S. et al., Turbulent flow past a surface-mounted two-dimensional rib[J]. J. Fluids Eng. Trans. ASME, 1994, 116: 238–246.CrossRefGoogle Scholar
  4. [4]
    Bergeles G., Athanassiadis N. The flow past a surface-mounted obstacle[J]. J. Fluids Eng. Trans. ASME, 1983, 105:461–463.CrossRefGoogle Scholar
  5. [5]
    Antoniou J., Bergeles G. Development of the reattached flow behind surface-mounted two-dimensional prisms[J]. J. Fluids Eng. Trans. ASME, 1988, 110:127–133.CrossRefGoogle Scholar
  6. [6]
    KE Feng, LIU Ying-zheng, CHEN Han-ping. Measurement of a wall bounded turbulent mixing layer flow[J]. Journal of Hydrodynamics, Ser.B, 2005, 17(6):681–685.Google Scholar
  7. [7]
    Kim J., Choi J.I., Sung H.J. Relationship between wall pressure fluctuations and streamwise vortices in a turbulent boundary layer[J]. Phys Fluids, 2002, 14:898–901.CrossRefGoogle Scholar
  8. [8]
    Chun S.J., Liu, Y.Z., Sung H.J. Wall pressure fluctuations of a turbulent separated and reattaching flow affected by an unsteady wake[J]. Exp Fluids, 2004, 37:531–546.CrossRefGoogle Scholar
  9. [9]
    Cherry NJ, Hiller R, Latour MEMP. Unsteady measurements in a separated and reattaching flow[J]. J Fluid Mech., 1984, 144:13–46CrossRefGoogle Scholar
  10. [10]
    Lee I, Sung HJ. Multiple-arrayed pressure measurement for investigation of the unsteady flow structure of a reattaching shear layer[J]. J. Fluid Mech., 2002, 463: 377–402.CrossRefGoogle Scholar
  11. [11]
    Lee I, Sung HJ. Characteristics of wall pressure fluctuations in separated flows over a backward-facing step: Part I. Time-mean statistics and cross-spectral analyses[J]. Exp Fluids, 2001, 30:262–272CrossRefGoogle Scholar

Copyright information

© China Ship Scientific Research Center 2006

Authors and Affiliations

  • Feng Ke
    • 1
  • Ying-zheng Liu
    • 1
  • Chun-yu Jin
    • 1
  • Wei-zhe Wang
    • 1
  1. 1.School of Mechanical and Power EngineeringShanghai Jiaotong UniversityShanghaiChina

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