The structure of zero, favorable and adverse pressure gradient turbulent boundary layers

Zambri Harun, Jason P. Monty, I. Marusic

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

The effects of pressure gradient on an initially zeropressure- gradient turbulent boundary layer are investigated. We consider both adverse and favourable pressure gradients at matched Reynolds number as compared with the zero pressure gradient case. The data are also acquired using matched sensor parameters so that an unambiguous comparison can be made. The results show that energy increases throughout the turbulent boundary layer as the pressure gradient increases. It is also found that the large-scale motions are much more energetic for adverse pressure gradients compared with the other cases. The outer region of the flow appears most affected by the pressure gradient in this regard. The streak spacing in the near-wall viscous region is found to be unaffected by the pressure gradients, which is in contrast to other studies in the literature.

Original languageEnglish
Publication statusPublished - 1 Jan 2011
Externally publishedYes
Event7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011 - Ottawa, Canada
Duration: 28 Jul 201131 Jul 2011

Other

Other7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011
CountryCanada
CityOttawa
Period28/7/1131/7/11

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Pressure gradient
Boundary layers
Reynolds number
Sensors

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Harun, Z., Monty, J. P., & Marusic, I. (2011). The structure of zero, favorable and adverse pressure gradient turbulent boundary layers. Paper presented at 7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011, Ottawa, Canada.

The structure of zero, favorable and adverse pressure gradient turbulent boundary layers. / Harun, Zambri; Monty, Jason P.; Marusic, I.

2011. Paper presented at 7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011, Ottawa, Canada.

Research output: Contribution to conferencePaper

Harun, Z, Monty, JP & Marusic, I 2011, 'The structure of zero, favorable and adverse pressure gradient turbulent boundary layers' Paper presented at 7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011, Ottawa, Canada, 28/7/11 - 31/7/11, .
Harun Z, Monty JP, Marusic I. The structure of zero, favorable and adverse pressure gradient turbulent boundary layers. 2011. Paper presented at 7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011, Ottawa, Canada.
Harun, Zambri ; Monty, Jason P. ; Marusic, I. / The structure of zero, favorable and adverse pressure gradient turbulent boundary layers. Paper presented at 7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011, Ottawa, Canada.
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