Frequency Control of Cylindrical Bluff Body Wake by Using Microactuators
نویسندگان
چکیده
منابع مشابه
Optimal stretching in the reacting wake of a bluff body.
We experimentally study spreading of the Belousov-Zhabotinsky reaction behind a bluff body in a laminar flow. Locations of reacted regions (i.e., regions with high product concentration) correlate with a moderate range of Lagrangian stretching and that range is close to the range of optimal stretching previously observed in topologically different flows [T. D. Nevins and D. H. Kelley, Phys. Rev...
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A specific feature of three-dimensional bluff body wakes, flow bistability, is a subject of particular recent interest. This feature consists of a random flipping of the wake between two asymmetric configurations and is believed to contribute to the pressure drag of many bluff bodies. In this study we apply the modelling approach recently suggested for axisymmetric bodies by Rigas et al. (J. Fl...
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In this project, linear feedback control is used to modify the dynamics of fluid flows. We focus on two system identification and controller design strategies that target separated wakes behind bluff bodies. In particular, we aim to reduce the form drag and suppress the large fluctuations that typically develop in such wakes and are detrimental to efficiency and safety in a large number of indu...
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ژورنال
عنوان ژورنال: Transactions of the Japan Society of Mechanical Engineers Series B
سال: 1997
ISSN: 1884-8346,0387-5016
DOI: 10.1299/kikaib.63.605_69