Titlebook: Nature-Inspired Fluid Mechanics; Results of the DFG P Cameron Tropea,Horst Bleckmann Book 2012 Springer Berlin Heidelberg 2012 Boundary Lay

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1612-2909 stems.Written by leading experts in the field.This book is the closing report of the national priority program .Nature-Inspired Fluid Mechanics .(Schwerpunktprogramm SPP 1207: Str?mungsbeeinflussung in der Natur und Technik). .Nature-inspired fluid mechanics .is one subset of biomimetics, a discipli

narcissism

Shape and Deformation Measurement of Free Flying Birds in Flapping Flighteathers. Furthermore a newly developed camera driving system is introduced, which enables a movement of the surface measurement system synchronized with a bird. The application of this system to free flying barn owls is described together with high resolution surface results, obtained during free flapping flight of the bird.

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Learning from Dolphin Skin – Drag Reduction by Active Delay of Transition: Flow Control by Distribut. For the biomimetic approach, reduced models of compliant surfaces are developed and parametrized by direct optimization and according to numerically generated optimal wall properties. Damping results of up to 85% RMS value are achieved.

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Development and Fabrication of Active Microstructures for Wave Control on Airfoilshe dampening of TS waves are fulfilled. Several actuators are cascaded in a compact manner and combined with a membrane and an array of sensors. The system has proven in wind tunnel experiments to be capable of dampening TS waves successfully and delaying transition.

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Linear-Stability Investigations for Flow-Control Experiments Related to Flow over Compliant Wallst-growth of instabilities over the compliant wall was investigated, since the eigenvalue spectrum of the compliant-wall problem turned out to be sensitive to truncation errors. For the parameters investigated, the maximum transient growth of the compliant-wall case is in the same order as the growth of the rigid-wall case.