Original title: Active control of the wake behind the cylinder
Authors: Broučková, Zuzana ; Flídr, Erik ; Šafařík, P. ; Trávníček, Zdeněk
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2016, Mariánské Lázně (CZ), 20161115
Year: 2016
Language: eng
Abstract: Active control of the flow around a cylinder using synthetic jet (SJ) array was experimentally investigated. The prevailing method was flow visualization. Modification of the wake was investigated at two values of a dimensionless momentum coefficient (Cμ = 0.21 and 1.02). Various α and Cf parameters were tested (where α is the angle between SJs and the main flow direction and Cf is the frequency ratio). The control moves separation point more downstream. Increasing frequency ratio Cf causes refining of the vortex structure. When SJs are placed at the front or rear stagnation points, wake tends towards the symmetrical pattern.
Keywords: active control; cylinder; synthetic jet
Project no.: GA14-08888S (CEP), GA16-16596S (CEP)
Funding provider: GA ČR, GA ČR
Host item entry: Proceedings of the International conference Experimental Fluid Mechanics 2016

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/11104/0266671

Permalink: http://www.nusl.cz/ntk/nusl-262554


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