Abstract
Nominally two-dimensional flows can be strongly affected by three-dimensional flow effects. The influence of these three -dimensionalities is investigated in the reverse-flow region downstream of a swept backward-facing step by varying the Reynolds number and the sweep angle. Prandtl’s independance principle was found to hold for the ratio of reattachment length and step height up to sweep angles of about 40¡ã within a certain Reynolds-number range. The principle also holds for the skin-friction component normal to the step.
A brief summary is given in the appendix of an improved method to determine skin-friction distributions by means of oil-film interferometry. Comparisons of different measuring techniques for the skin friction and turbulence measurements in the flow field at different sweep angles will be published separately.
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© 1993 Springer Fachmedien Wiesbaden
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Fernholz, H.H., Janke, G., Kalter, M., Schober, M. (1993). On the separated flow behind a swept backward-facing step. In: Gersten, K. (eds) Physics of Separated Flows — Numerical, Experimental, and Theoretical Aspects. Notes on Numerical Fluid Mechanics (NNFM), vol 40. Vieweg+Teubner Verlag, Wiesbaden. https://doi.org/10.1007/978-3-663-13986-7_27
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DOI: https://doi.org/10.1007/978-3-663-13986-7_27
Publisher Name: Vieweg+Teubner Verlag, Wiesbaden
Print ISBN: 978-3-531-07640-9
Online ISBN: 978-3-663-13986-7
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