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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v32.i3.30
pages 281-290

Effect of Wall Suction on Coherent Structures in a Turbulent Boundary Layer

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

Краткое описание

An experimental study has been carried out in a turbulent boundary layer subject to concentrated wall suction, applied through a porous wall strip with the view to examine the modification of the coherent structures by suction. The results indicate that active and inactive motions are suppressed by suction as reflected in the significant reduction in the Reynolds stresses and alterations in spectra distributions. These would result in the modification in the coherent structures. The change in the mixing lengths distributions suggests that the near-wall flow dynamics have been altered by suction. The effect of these changes in the near-wall coherent structures increases as the suction rate is increased.


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