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Experimental investigation on the turbulent coherent structures of laminar separation flow over a backward facing step

  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

The experimental investigation is conducted with LDV and hydrogen bubble technique in water flow. The shear layer thickness, the vorticity thickness, the maximum value of turbulence intensities, the turbulent coherent structure, the variations of wall shear stress and the boundary layer shape factor are obtained. In the redevelopment region, the detailed analysis is first made for the streak structures in the near wall region and the turbulent boundary layer is formed at (x-xr)/h= 20.

Original languageEnglish
Pages (from-to)175-181
Number of pages7
JournalChinese Journal of Aeronautics
Volume9
Issue number3
StatePublished - 1996

Keywords

  • Backward facing steps
  • Laminar boundary layer
  • Reattached flow
  • Separated flow
  • Turbulent boundary layer

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