Flow separation characterisation of a forward facing step immersed in a turbulent boundary layer

Michael John Sherry, David Lo Jacono, John Sheridan, Romain Mathis, Ivan Marusic

Research output: Contribution to conferencePaperpeer-review

19 Citations (Scopus)


Flow separation experiments are conducted in two facilities using particle image velocimetry (PIV) and pressure tappings over a wide Reynolds number range for a forward facing step immersed in a turbulent boundary layer. Bluff body flow is observed with the fixed separation point located at the leading edge of the model. The recirculation region dimensions are characterised over the entire Reynolds number range using the PIV technique. Pressure tappings provide insight into the surface pressure distribution in a recirculation region. The mechanisms affecting the reattachment distance, XL, namely the turbulent mixing within the boundary layer and the velocity deficit in the boundary layer are commented on.

Original languageEnglish
Number of pages6
Publication statusPublished - 1 Jan 2009
EventTurbulence and Shear Flow Phenomena 2009 - Seoul, Korea, Republic of (South)
Duration: 22 Jun 200924 Jun 2009
Conference number: 6th


ConferenceTurbulence and Shear Flow Phenomena 2009
Abbreviated titleTSFP 2009
CountryKorea, Republic of (South)

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