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Download Control of Fluid Flow by Petros Koumoutsakos, Igor Mezic PDF

By Petros Koumoutsakos, Igor Mezic

This conscientiously edited monograph provides the state-of-the-art of idea and purposes in fluid movement keep watch over. It collects contributions via major specialists within the box of fluid move keep an eye on attention-grabbing for engineers, physicists, or mathematicians up to the mark and fluid dynamics. "Control of Fluid circulate" covers a variety of contemporary themes together with vortex established keep watch over algorithms, incompressible turbulent boundary layers, aerodynamic move regulate, regulate of combining and reactive movement tactics or nonlinear modeling and regulate of combustion dynamics.

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FB 81–33. DFVLR. , Liu, C. F. & Shyu, J. Y. 1990 Control of wall-separated flow by internal acoustic excitation. AIAA J. 28, 1440–1446. -H. Fernholz and F. Urzynicok [30] Huang, L. , Bryant, T. D. & Maestrello, L. 1988 The effect of acoustic forcing on trailing edge separation and near wake development of an airfoil. AIAA Paper 88–3531-CP. [31] Huang, L. , Maestrello, L. & Bryant, T. D. 1987 Separation control over an airfoil at high angles of attack by sound emanating from the surface. AIAA Paper 87–1261 .

Each curve has a saturation value Ecohmax at a different height and at a different streamwise location x/h. This behavior is typical of a Kelvin-Helmholtz instability. A comparison of Fig. 84) occurs at f = 120 Hz which is not the curve with the absolute maximum (f = 51 Hz) but the curve with the highest values of Ecoh very close to the fence, since here the flow manipulation is most effective in reducing the reattachment length. For this case and single frequency excitation, PIV measurements were made which show the expected roll-up of the shear layer to a large coherent structure just downstream of the fence without vortex pairing (not shown here, but see [33]).

2001 The manipulated transitional backward-facing step flow: an experimental and direct numerical simulation investigation. Eur. J. Mech. B/Fluids 20, 25–46. -H. Fernholz and F. Urzynicok [65] Werlé, H. 1960 Essais de soufflage au tunnel hydrodynamique a visualisation. Note Technique 61. ONERA. [66] Williams, D. , Bernhardt, J. -M. 1991 The mechanism of flow control on a cylinder with the unsteady bleed technique. AIAA Paper 91–0039 . [67] Wu, J. M. & Wu, J. Z. 1992 Vortex lift at a very high angle of attack with massively separated unsteady flow.

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