Abstract
The unsteady behaviour of separation and jets is explained in terms of the propagation and amplification of waves. The formation of waves on the boundaries of separation and jets is often caused by an instability of the Kelvin Helmholtz type. Kinematic waves, however, also lead to an amplification of deformations of the boundaries. Kinematic waves are inherent to dynamic processes as the Kelvin Helmholtz instability, but they can also occur independently. In addition acoustic waves often close feedback loops of self-excited oscillations.
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References
M.J. Lighthill, F.R.S. and G.B. Whitham, On kinematic waves I. Food movement in long rivers, Proc. Roy. Soc. A 229 (1955), 281–316
A. Kluwick, Kinematische Wellen, Acta Mechanica 26 (1977) 15–46
G. Grabitz and G.E.A. Meier, Über Laufzeitinstabilitäten in Flüssigkeitsstrahlen, ZAMM 63 (1983) T255–T257
G.E.A., Meier, A. Klöpper and G. Grabitz, The influence of kinematic waves and surface tension on jet breakdown (to be published in Experiments in Fluids)
Lord Rayleigh, On the instability of jets, Proc. London Math. Soc. X (4) (1878)
G., Grabitz und G.E.A. Meier, Laufzeiteffekte beim geschwindigkeitsgestörten Flüssig-keitsstrahl, ZAMM 71 (in press)
G., Grabitz, Berechnung pulsierender Flüssigkeitsfreistrahlen, Max-Planck-Institut für Strömungsforschung, Bericht 15/1990
B.Sommerlade, Laufzeit-Effekte in einer Kanalströmung, Max-Planck-Institut für Strömungsforschung, Bericht 10/1990
G.E.A. Meier, Shock induced flow oscillations in a Laval nozzle. In: Oswatitsch, K. and Rues, D. (eds.) Symposium Transonicum, 252–261. Springer, Berlin (1976)
R. Bohning and J. Zierep, Stoß-Grenzschichtinterferenz bei turbulenter Strömung an gekrümmten Wänden mit Ablösung, Zeitschrift für Flugwissenschaften und Weltraumforschung 6 (1982) 68–74
M. Rein, G. Grabitz and G.E.A. Meier, Strömungsschwingungeri in Lavaldüsen, Zeitschrift für Flugwissenschaften und Weltraumforschung 10, (1986) 1 - 5
M.S. Liou and M. Sajben, Analysis of Unsteady Viscous Transonic Flow with a Shock Wave in a Two-Dimensional Channel, AIAA Paper 80 - 0195 (1980)
C.P. Chen, M. Sajben and J.C. Kroutil, Shock-Wave Oscillations in a Transonic Diffuser Flow, AIAA J. 17 (10) (1979) 1076 - 1083
K. Ehrenfried, Dynamik der Lavaldüsenströmung bei unterschiedlichen Randbedingungen, Max-Planck-Institut für Strömungsforschung, Bericht 5/1988
F.E.C. Culick and T. Rogers, The Response of Normal Shocks in Diffusers, AIAA J. 21 (10) (1983) 1382 - 1390
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© 1991 Springer-Verlag, Berlin Heidelberg
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Meier, G.E.A., Ehrenfried, K., Grabitz, G., Rein, M. (1991). Wave Models for Unsteady Separation and Jets. In: Kozlov, V.V., Dovgal, A.V. (eds) Separated Flows and Jets. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84447-8_66
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DOI: https://doi.org/10.1007/978-3-642-84447-8_66
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