Modification to a turbulent boundary layer due to slot injected drag reducing polymer solutions

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Abstract

The modification of a flat plate turbulent boundary layer resulting from the injection of drag reducing polymer solutions through a narrow inclined slot into the near wall region of the flow has been studied. Two component coincident laser Doppler velocity profiles were measured with polymer injection, water injection, no injection and with dilute polymer ocean flows. The immediate effects of polymer injection are a deceleration of the flow, a dramatic decrease of the vertical rms velocity fluctuation levels and the Reynolds shear stress levels, and a mean velocity profile approaching Virk's asymptotic condition. These effects relax substantially with increasing streamwise distance from the injection slot and become similar to those resulting with the polymer ocean cases.

Original languageEnglish (US)
Title of host publicationForum on Turbulent Flows 1990
EditorsJames A. Miller, Demetri P. Telionis
PublisherPubl by ASME
Pages43-49
Number of pages7
Volume94
StatePublished - 1990
Event1990 Spring Meeting of the Fluids Engineering Division - Toronto, Ont, Can
Duration: Jun 4 1990Jun 7 1990

Other

Other1990 Spring Meeting of the Fluids Engineering Division
CityToronto, Ont, Can
Period6/4/906/7/90

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Fontaine, A. A., Petrie, H. L., & Brungart, T. A. (1990). Modification to a turbulent boundary layer due to slot injected drag reducing polymer solutions. In J. A. Miller, & D. P. Telionis (Eds.), Forum on Turbulent Flows 1990 (Vol. 94, pp. 43-49). Publ by ASME.