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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.9

ISSN Imprimir: 2152-5102
ISSN On-line: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v31.i5.20
pages 430-445

Experimental Investigation of the Influence of Reynolds Number on the Suction Effect on the Turbulent Boundary Layer Structure

Olanrewaju Oyewola
Discipline of Mechanical Engineering, The University of Newcastle NSW, 2308, Australia

RESUMO

This paper considers the hot-wire measurements carried out in a turbulent boundary layer subjected to concentrated suction, applied through a porous wall strip with a view to examine the influence of Reynolds number on the suction effect on the turbulent boundary structure. The results indicate that, relative to no suction, there is an alteration in the near-wall turbulent activity when suction is applied, as reflected in the departure of correlation coefficient, structural parameter and higher-order moments from their non-suction counterparts. The alterations suggest a change in the near-wall structures. The effect is increased as suction rate is increased, but is reduced as Reynolds number is increased.


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