Summary
Flow field investigations were carried out in a backward-facing single-sided step flow with variation of the wall inclination angle. The aim of this investigation was to determine the differences in turbulent flow field quantities when compared to the 90° step geometry. The inclination angle was varied between 10° and 90°. Reynolds numbers (based on step height H) were realized up to 64000. Additionally, the influence of the expansion ratio on the flow field was to investigate with three different ratios 1.48, 2.0, 3.27. Velocity data were measured by laser Doppler anemometry allowing to determine integral flow quantities as e.g. separation streamlines or reattachment lengths. The experiments should both, contribute to the understanding of the phenomenology of separated flows and establish a comprehensive data base for the validation of numerical codes.
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Literature
Abbott, D.E., Kline, S.J., 1962: “Experimental Investigation of Subsonic Turbulent Flow over Single and Double Backward-Facing Steps”, Trans. ASME J. Basic Engng., 317–325
Bradshaw, P., Wong, F.Y., 1972: “The Reattachment and Relaxation of a Turbulent Shear Layer”, Part 1, J. Fluid Mech., 52, 1, 113–135
Schmitt, F., 1987: “Untersuchung der turbulenten Stufenströmung bei hohen Reynoldszahlen”, Fortschritts-Berichte VDI (Dissertation), 117, 7
Adams, E.W., Johnston, J.P., 1988: “Effects of the Separating Shear Layer on the Reattachment Flow Structure, Part 2: Reattachment Length and Wall Shear Stress”, Experiments in Fluids, 6, 493–499
Kline, S.J., Abbot, D.E., Fox, R.W., 1959: “Optimum Design of Straight Walled Diffusors, J. Basic Eng., Vol. 81, pp. 321
Chaturvedi, M.C., 1963: “Flow Characteristics of Axisymmetric Expansions”, J. of the Hydraulics Division, 89, HY3, 61–92
Armaly, B.F., Durst, F., Pereira, J.C.F., Schönung, B., 1983: “Experimental and Theoretical Investigation of Backward-Facing Step Flow”, J. Fluid Mech. 127, 473–496
Tropea, C., 1982: “Die turbulente Stufenströmung in Flachkanälen und offenen Gerinnen”, Dissertation, Universität Karlsruhe
Ruck, B., Makiola, B., 1989: “Backward-Facing Step Flow with Inclined Step Geometries”, Proc. 4th Asian Congress of Fluid Mechanics, Hong Kong, C, 236–239
Ruck, B., Makiola, B., 1989: “Flow over Single-Sided Backward- Facing Steps with Angle Variations”, Proc. 3rd Int. Symp. on Laser Anemometry, Swansea, Wales, 40.1–40. 10
Makiola, B., Ruck, B., 1990: “Experimental Investigation of a Single-Sided Backward-Facing Step Flow with Inclined Step Geometries”, in Engineering Turbulence Modelling and Experiments, Rodi, W., Ganic, E.N. (eds.), Elsevier Science Publ. Co., Inc., 487–496, ISBN: 0–444–01563–9
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© 1993 Springer Fachmedien Wiesbaden
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Ruck, B., Makiola, B. (1993). Flow Separation over the Inclined 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_8
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DOI: https://doi.org/10.1007/978-3-663-13986-7_8
Publisher Name: Vieweg+Teubner Verlag, Wiesbaden
Print ISBN: 978-3-531-07640-9
Online ISBN: 978-3-663-13986-7
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