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Eighth International Symposium on Turbulence and Shear Flow Phenomena
August, 28-30, 2013, Poitiers, Futuroscope, France

DOI: 10.1615/TSFP8

STREAMWISE VARIATION OF TURBULENT DYNAMICS IN BOUNDARY LAYER FLOW WITH DRAG-REDUCING SURFACTANT INJECTION

pages 1-6
DOI: 10.1615/TSFP8.1730
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ABSTRACT

We investigated the difference in streamwise variations of turbulent dynamics between homogeneous and heterogeneous (injected) nonionic surfactant solutions using the flow visualization and two-component LDV and PIV measurements in drag-reducing turbulent boundary layer flows. It is found that streamwise variations in turbulence statistics for surfactant solution injection are similar with those of homogeneous surfactant solutions, except for the streamwise turbulence intensity and Reynolds shear stress.

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