By Petros Koumoutsakos, Igor Mezic
This rigorously edited monograph offers the cutting-edge of conception and functions in fluid stream keep watch over. It collects contributions by way of major specialists within the box of fluid movement regulate attention-grabbing for engineers, physicists, or mathematicians up to speed and fluid dynamics. "Control of Fluid stream" covers a variety of contemporary subject matters together with vortex established keep watch over algorithms, incompressible turbulent boundary layers, aerodynamic move regulate, keep watch over of combining and reactive move tactics or nonlinear modeling and keep an eye on of combustion dynamics.
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B. ), pp. 218–232. Springer Verlag. , Béraud, F. & Graichen, K. 1996 Investigations in the near ﬁeld of a nominally two-dimensional, strong acoustic perturbation source. In Advances in Turbulence VI (ed. S. Gavrilakis, L. Machiels & P. A. Monkewitz), Fluid Mechanics and its Applications, vol. 36, pp. 177–178. Kluwer Acad. Publ.  Erk, P. -H. 1994 An experimental study of the receptivity of a separated boundary layer on a low-Reynolds number airfoil at high angles of attack. In Book of Abstracts Euromech Colloquium 328 .
The drag coeﬃcient was practically unchanged. At α = 27◦ , the skin friction distribution (Fig. -H. Fernholz and F. 8 x/c Fig. 36. 5 × 105 , α = 27◦ , ΔH ∗ = 1 mm, lines are for visual aid only). From Zhou et al.  part. Both cf and χw are practically zero ("dead air region") and reach higher values only towards the rear of the wedge-like body owing to the massive open separation. 85) over the greater part of the wing (Fig. 37). 0 x/c Fig. 37. 5 × 105 , α = 27◦ , ΔH ∗ = 1 mm, lines are for visual aid only).
LFST shows the typical cp -distributions for a ﬂow with a separation bubble. Mean separation (xD = 344 mm) and reattachment (xR = 561 mm) deﬁne a mean bubble length of ΔxS = 217 mm and are characterized as the locations where cf = 0 and χw = 50 %. 0 cp 100 χW [%] 3 . 1 −200 0 200 400 600 800 1000 LFST MFST 40 HFST 20 1200 1400 1600 0 1800 x [mm] Fig. 19. Streamwise distribution of the wall parameters: static pressure coeﬃcient cp , skin-friction coeﬃcient cf , and reverse-ﬂow parameter χw . From Kalter & Fernholz  Control of Weak and Strong Reverse-Flow Regions 23 length of the bubble.
Control of Fluid Flow by Petros Koumoutsakos, Igor Mezic