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Active Control of Separating Boundary Layer
Author(s) -
Florin Frunzulica,
Alexandru Dumitrache,
Horia Dumitrescu,
Octavian Preotu
Publication year - 2010
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201010225
Subject(s) - drag , boundary layer , synthetic jet , flow separation , separation (statistics) , boundary layer control , reduction (mathematics) , mechanics , mixing (physics) , jet (fluid) , flow control (data) , boundary (topology) , parasitic drag , flow (mathematics) , control theory (sociology) , computer science , control (management) , physics , mathematics , telecommunications , artificial intelligence , actuator , mathematical analysis , geometry , quantum mechanics , machine learning
Flow control refers to the ability to alter flows with the aim of achieving a desired effect: examples include drag reduction, noise attenuation, improved mixing or increased combustion efficiency among many other industrial applications. The reduction and control of the viscous drag force exerted on bodies moving in a fluid is of great technical interest. Several active and passive methods to achieve a delay of separation in the boundary layer have been developed and are being developed. In this paper we present a new concept for boundary layer separation control that is based on the synthetic jet concept which converts acoustic oscillations into mean fluid motions. We use synthetic jets as methods for Coanda effect's amplification. (© 2010 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)