AXIAL VARIATION OF A SYNTHETIC JET FREQUENCY SPECTRUM

0351575 - ÚT 2011 CZ eng C - Conference Paper (international conference)
Tesař, Václav - Kordík, Jozef
AXIAL VARIATION OF A SYNTHETIC JET FREQUENCY SPECTRUM.
International Conference Experimental Fluid Mechanics 2010. Vol. 1. Liberec: Technical University of Liberec, 2010 - (Vít, T.; Dančová, P.), s. 700-715. ISBN 978-80-7372-670-6.
[International Conference Experimental Fluid Mechanics 2010. Liberec (CZ), 24.11.2010-26.11.2010]
R&D Projects: GA ČR GA101/07/1499; GA AV ČR IAA200760705
Institutional research plan: CEZ:AV0Z20760514
Keywords : turbulence * synthetic jet * transition
Subject RIV: BK - Fluid Dynamics

Frequency spectra of synthetic jets vary along the jet axis and there is sudden change of the character and structure of axisymmetric synthetic jets at the relative axial distance from the virtual origin X1*/d ~50. Processing the spectra into the compensated form made obvious a number of surprising facts – one of them the discovery that what wasexpected to be the Komogorov constant obviously varies quite significantly along the jet, its variations exhibiting a marked change in its behaviour at the critical transition.
Permanent Link: http://hdl.handle.net/11104/0191298