Original title: Influence of Carrying Frequency Phase Shift of Synthetic Jet Generator on The Noise
Authors: Pick, P. ; Matějka, Milan ; Skála, V.
Document type: Papers
Conference/Event: Topical Problems of Fluid Mechanics 2014, Praha (CZ), 2014-02-19 / 2014-02-21
Year: 2014
Language: eng
Abstract: The main topic of this article is the influence of phase shift of neighbouring synthetic jet generators to the flow field past a hump and noise reduction. Syntheetic jet generators are placed in the hump in front of point of boundary layer separation. The carrying frequency of actuating signal, wich is driving the synthetic jet generator, is shifted for about 180°. The modulated frequency, which corresponds to the shading frequency of the flow, is superposed on the carrying signal. Finally, the benefits of phase shift signal of neighbouring synthetic jet generators are described, as far as the produced noise and the total loss coefficient decrease are concerned.
Keywords: carrying frequency; modulationfreqency; noise; synthetic jet
Project no.: GAP101/10/1230 (CEP), GA101/08/1112 (CEP)
Funding provider: GA ČR, GA ČR
Host item entry: Topical Problems of Fluid Mechanics 2014, ISBN 978-80-87012-51-2

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0235408

Permalink: http://www.nusl.cz/ntk/nusl-174881


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers