By Rudibert King

This publication comprises contributions awarded on the lively circulate keep watch over 2006 convention, held September 2006, on the Technische Universit?t Berlin, Germany. It features a good balanced mix of theoretical and experimental state of the art result of energetic move keep an eye on. assurance combines new advancements in actuator expertise, sensing, strong and optimum open- and closed-loop keep an eye on and version aid for keep watch over.

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Read Online or Download Active Flow Control: Papers contributed to the Conference Active Flow Control 2006, Berlin, Germany, September 27 to 29, 2006 (Notes on Numerical Fluid Mechanics and Multidisciplinary Design) PDF

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Additional info for Active Flow Control: Papers contributed to the Conference Active Flow Control 2006, Berlin, Germany, September 27 to 29, 2006 (Notes on Numerical Fluid Mechanics and Multidisciplinary Design)

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7. To compute the power spectra, time series of the velocity signal have been extracted from the PIV measurements at the respective points. The initial spectrum of the baseline flow directly behind the leading edge is very noisy. 2 Hz in point B. 2 Hz in point C and 1 Hz in point D. The 36 C. Cierpka, T. Weier, and G. 5 0 0 0 1 2 3 4 5 f/fe 6 7 8 9 10 0 1 2 3 4 5 f/fe 6 7 8 9 10 Fig. 8. Power spectra at points A,B,C, and D as denoted in Fig. 7 for the baseline flow, and excitation with rectangular, sinusoidal, and triangular wave forms.

The body of the plate consists of polyvinyl chloride (PVC). It has a circular leading edge, a span width of 140 mm, a chord length of 130 mm, and a thickness of 10 mm. 25 M NaOH). Both, magnets as well as electrodes, have a quadratic surface with an edge length of a = 5 mm. 35 T was determined. A high power amplifier FM 1295 from FM Elektronik Berlin has been used to feed the electrodes. It was driven by a frequency generator 33220A from Agilent. The applied Lorentz force strength is given as an effective momentum coefficient T 1 aB0 l cµ = · · · 2 2 ρU∞ c 1 T j(t)2 dt (7) 0 relating the rms momentum added by the Lorentz force to that in the free stream.

1991) “Separation Control: Review,” J. Fluids Eng. 113, pp. 5–30. F. (1986) “Coherent Structures in a Turbulent Boundary Layer. Part 1. Generation of ’Artificial’ Bursts,” Phys. Fluids 29, pp. 2124–2139. N. (1992) “Controlling Cardiac Chaos,” Science 257, pp. 1230–1235. , and L´eorat, J. (1991) “Lyapunov Exponents and the Dimension of Periodic Incompressible Navier–Stokes Flows: Numerical Measurements,” J. Fluid Mech. 222, pp. 61–94. , and Ott, E. (1994a) “Communicating with Chaos,” Phys. Rev. Lett.

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